Halo Wars: Skulls, Black Box's, and other Achievements

Mission: 05 [Arcadia Outskirts]
After retreating from Arcadia City, Forge and the remains of his forces attempt to usurp a large, defendable crater to the south and rally his troops. After establishing two bases and surviving numerous Covenant onslaughts, reinforcements push back north to destroy a Covenant base.

Objectives
Win Condition: All primary objectives met.
Loss Condition: All buildings and units destroyed and heroes downed.
Par Time: 21:00 - 23:00

• Retreat to the Southern Crater [250 Points]
  Covenant forces are closing in. Get to the southern crater and try to hold out.
  
• Secure the Area By Killing All Covenant in the Crater [250 Points]
  Covenant forces are swarming all over the crater. Take out all the enemies and create a safe zone.
  
• Defend the Crater until Omega Team Arrives [750 Points]
  Additional UNSC forces are on approach to your location. The crater is excellent defensive terrain; hold fast, maintain a base in the crater, and wait for help.
  
• Destroy the Covenant Base and Its Guards [1,000 Points]
  If the Covenant base is destroyed, the UNSC position on Arcadia will be secure. All of the base buildings and any nearby Covenant units must be eliminated.
  
• Optional Construct a Second Base [500 Points]
  More production capacity would give you a fighting chance to defeat the Covenant. If the crater is secure, try to claim an additional base.
  
• Optional Kill Five Wraith Tanks [750 Points]
  The Wraith is a heavy vehicle equipped with a plasma mortar. Used at the forefront of ground assaults, they are a critical component of the Covenant arsenal.

Difficulty Modifications
Easy: All enemy units have 25 percent less Health Points and inflict 25 percent less damage. Banshee assaults are less common. The Covenant Mega-Turret cannot hit the crater base and has limited Health Points. There are less Covenant units with no enemy upgrades.
Heroic: All enemy units have 25 percent more Health Points, inflict 25 percent more damage, and are upgraded. Covenant Mega-Turret will bombard the crater base and is more resistant to damage.
Legendary: All enemy units have 50 percent more Health Points, inflict 50 percent more damage, and are almost fully upgraded. Covenant Mega-Turret will bombard the crater base and is even more resistant to damage. Banshee assaults are frequent.

Skull: Fog
Condition: Kill Five Wraith Tanks [750 Points]
Once your fifth Wraith Tank has been mangled, send a unit (ideally a Warthog, although an infantry unit on the overpass, defending the destroyed Pelican cover area, is also an option) northwest along the overpass. Tread on the straight overpass, not the section that curves to the right. The Skull is located along here, near the buildings.

Black Box: 5
Once the army is assembled, head north up the highway path past Waypoints 2 and 1. While the majority of your troops moves toward the final Waypoint, split off a Warthog or infantry unit down the short ramp to the northeast. The Black Box is lying in the semicircular walled area near cover. Grab it!

Cooperative Advice
Once you reach the southern crater and build the base (keep both Reactors in UNSC hands), have one player build up the structure while the other controls the troops. Or, each player can control a base if you've attacked a Mega-Turret. Then let one player deal with enemy incursions nearby and on the overpass, while the other pushes up the main path.

Legendary Tactics
[Waypoint 9] Ensure Spartan Team Omega attack the base with other units; Spartans are tough, but they aren't unstoppable.

Awards and Summary
Gold: 40,000+
Silver: 25,000 - 39,999
Bronze: 15,000 - 24,999
Tin: 0 - 14,999
Best Objective Score: 3,500
Best Combat Bonus: x10 (35,000)
Best Time Bonus: x5 (17,500)
Theoretical Best Score: 56,000

Mission: 06 [Dome of Light]
Forge and Anders move to a secret ONI base perched over a huge Covenant dome discovered on Arcadia. Request special Rhinos fitted with Plasma Cannons and maneuver them into position. Have them fire simultaneously and pierce a hole in the dome large enough to allow the Spirit of Fire's Mac Cannon through.

Objectives
Win Condition: All primary objectives met.
Loss Condition: All buildings and units destroyed, and heroes downed. Not enough supplies to recover.
Par Time: 15:00 - 30:00

• Kill Approaching Covenant Infantry [300 Points]
  The Covenant are attacking in force. Fight off the assault.
  
• Request a Rhino at the Landing Pad [300 Points]
  Call on Anders to send down a Rhino to the pad adjacent to your base.
  
• Get the Rhino to the First Position [400 Points]
  
• Place a Rhino at the Marked Second Position [550 Points]
  
• Transport a Rhino to the Marked Third Position [500 Points]
  Positions for the Rhinos are marked. Protect each Rhino until it can safely deploy at the marked destination. The Spirit of Fire menu has an option that allows you to use Pelicans to transport Rhinos.
  
• Get Rhinos to the Last Two Marked Positions [600 Points]
  You will need to get several Rhinos in position to be able to bring enough firepower to bear on the dome. Rhinos will be dropped at the landing pad.
  
• Optional Claim Two ONI Reactors [400 Points]
  Taking control of the nearby ONI Reactors will let you train advanced troops more quickly.
  
• Optional Kill 50 Banshees [600 Points]
  A fast-moving flying unit, the Banshee is highly maneuverable. Equipped with a plasma cannon, it provides deadly and effective air support for Covenant forces. Counter Banshees with Wolverines.
  
• Optional Destroy the Dome Generators and Air Defenses [500 Points]
  The Rhinos are in position. Wipe out the enemy structures and bring down the dome.

Difficulty Modifications
Easy: All enemy units have 50 percent less Health Points and inflict 50 percent less damage.
Heroic: There are Covenant turrets and bases. Huters arrive earlier and are more upgraded.
Legendary: All enemy units have 25 percent more Health Points and inflict 25 percent more damage. There are extra Covenant turrets and bases. Hunters arrive earlier and are more upgraded.

Skull: Sickness
Condition: Kill 50 Banshees [600 Points]
When you've shot your 50th Banshee from the skies (you man need Wolverines in order to tag every one quickly enough so your Time Bonus doesn't suffer), have a Marine unit (like the one garrisoned at the Reactor at Waypoint 1) quickly dash across to the hangar in your base's southeast corner. Claim the Sickness Skull here!

Black Box: 6
Just after you position the third Rhino at Waypoint 8, search a blocked tunnel entrance behind you, to the west. Black Box 6 is located here. You can quickly snag this without losing too much of your Time Bonus.

Cooperative Advice
With an additional teammate helping your progress, use the time-tested plan of separating responsibilities: Have the first player attack teh Covenant and place Rhinos at their clamp-down locations. The second player should defend the Fortress, build units, call for Rhinos , and check clamped Rhinos for signs of attack.

Legendary Tactics
[Waypoint 2] Use Spartan "Alice" to garrison this Reactor; as she defends it proficiently for a long time while allowing you to keep stronger Spartans with your main force.

[Waypoint 5] If you can, upgrade your Turrets to Medium or Heavy versions; in addition, choose Flame Mortars to repel Hunters and choose Missile Launchers to drop Banshees from the skies.

[Waypoint 5] After you secure the first Rhino, be in position to destroy the Covenant buildings under construction, close to where you're about to place the second Rhino. Plan ahead and remove the Covenant's structures before they spawn their terrible troops.

[Waypoint 9] If your army's Population rises above 15, the Covenant unleash a lot more troops, thus a light force of Scorpions is the best choice. Upgrade and repair Scorpions to maximize your combat bonus. It is wise to have troops positioned near Waypoint 11 to destroy any Covenant structures before the fourth Rhino is clamped down. The Covenant are easier to defeat if they cannot emerge from the Hall. At Waypoints 9 and 11, use transports to drop in Rhinos on already-cleared areas, saving you time (and your Bonus) as you don't have to worry about your Rhino being targeted within your vehicle squads.

[Waypoint 10/11] For a speedy resolution to this mission, it is recommended you complete all tasks as quickly as possible. With enough planning, you can have any Rhino clamp-down location cleared "one step ahead" of the Rhino being transported in. If you raise your Population above 15, only attempt this when you're aiming for the fourth and fifth clamp-down points. Let your Turrets defend your base, which you should essentially abandon in favor of a final push. You may lose your reinforced Turrets by mission completion. Also, don't leave troops behind to guard Rhinos, as a speedy completion finishes this mission without any Rhinos succumbing completely to enemy fire.

Awards and Summary
Gold: 45,00+
Silver: 25,00 - 49,999
Bronze: 15,000 - 24,999
Tin: 0 - 14,999
Best Objective Score: 4,150
Best Combat Score: x10 (41,500)
Best Time Bonus: x5 (20,750)
Theoretical Best Score: 66,500

Mission: 07 [Scarab]
After insertion into the dome, a Covenant superunit is discovered: A Super Scarab is under construction but can track units, lock on to them, and deliver a devastating plasma payload. Destroy the Power Nodes to slow its tracking head cannon before defeating the mechanical beast itself.

Objectives
Win Condition: All primary objectives met.
Loss Condition: All buildings and units destroyed, and heroes downed. Not enough supplies to recover.
Par Time: 12:00 - 24:00

• Destroy the Super Scarab [2,000 Points]
  The Scarab must be destroyed before it wipes out your base. Keep your forces out of the head's line of fire.
  
• Optional Kill 10 Locusts [750 Points]
  The spiderlike Locust is slow-moving but powerful. It is designed to destroy structures and is less effective against units. counter the Locust with Marines or Scorpions.
  
• Destroy All Enemy Power Nodes [750 Points]
  The nodes are secondary power sources for the Scarab. If they are destroyed, the Scarab will not be able to turn its head as quickly.

Difficulty Modifications
Easy: All enemy units have 50 percent less Health Points and inflict 50 percent less damage. There are less enemies defending Power Nodes.
Heroic: There are Shade Turrets added to the Covenant forces. More attacks occur on your base.
Legendary: All enemy units have 25 percent more Health Points and inflict 25 percent more damage. Even more attacks occur on your base.

Skull: Rebel Sympathizer
Condition: Kill 10 Locusts [750 Points]
Although you won't be collecting this Skull yet [early on in game], you must return to this peninsula [far northwest corner, near Waypoint 4] later into this mission, once you defeat ten Locusts but before dispatching the Super Scarab. Claim the Rebel Sympathizer Skull floating in this area. Peel off a Warthog to claim it while the rest deal with the Super Scarab.

Black Box: 7
As you round the curve [far northeast corner, near Waypoint 6], the alcove to the north offers more than a simple Scarab protection; it has a sizable stash of supply crates; leave a Warthog behind to collect these. In the middle of the alcove rests Black Box 7. Take this easily without detriment to your Time or Combat Bonuses.

Cooperative Advice
With two players, have one completely manage the Fortress and incoming foes, while the other takes down Nodes. Or, split forces with each player covering different groups of Power Nodes.

In Cooperative play, you can peel off a few of your troops to tackle and soften up the Super Scarab while you destroy all the Power Nodes. This eases the final battle against the Super Scarab.

Leave one player to dodge the Scarab's beam and launch an all-out vehicular attack, while the other fires the MAC Blasts.

Legendary Tactics
[Waypoint 1] With the increased Covenant attacks on your base, you still need to leave your base and concentrate on surviving the Power Node takedowns. Therefore, it is wise to build a few additional units to help nullify this additional Covenant threat. First, add Flame Mortars and Railguns to all four of your base Turrets to weaken incoming enemy ground forces. Then trundle out some Cobras to damage incoming Covenant vehicles at long range. A few Flamethrowers can help too.

[Waypoint 6] If you're having trouble with the Hunters clustered around a couple Power Nodes, soften them up with your two free MAC Blasts before engaging them.

Awards and Summary
Gold: 32,000+
Silver: 20,000 - 31,999
Bronze: 12,000 - 19,999
Tin: 0 - 11,999
Best Objective Score: 3,500
Best Combat Bonus: x10 (35,000)
Best Time Bonus: x5 (17,500)
Theoretical Best Score: 56,000

Can I just make a new thread for this?