Complete the indicated campaign in single player mode under the listed difficulty setting to unlock the corresponding bonus.
- Concept art pack #1: Campaign 3-4 under the normal difficulty setting.
- In-depth character profiles #1: Campaign 1-1 under the easy difficulty setting.
- In-depth character profiles #4: Campaign 4-4 under the easy difficulty setting.
- Jukebox: Campaign 2-4 under the normal difficulty setting.
- Multi-player Character Cobar: Campaign 4-4 under the hard difficulty setting.
- Multi-player Character Evelyn: Campaign 4-4 under the normal difficulty setting.
- Wallpaper pack #1: Campaign 1-4 under the easy difficulty setting.
Complete the indicated task to unlock the corresponding character.
- Cobar: Complete the game under the hard difficulty setting.
- Commando: Complete two player co-op mode.
- Metrac: Complete the game under the easy, normal, and hard difficulty settings.
- Specialist: Win 10 games in Ad-Hoc or Infrastructure Multi-player mode.
- Stratson: Win 100 games in Ad-Hoc or Infrastructure Multi-player mode.
Get the indicated number of points by completing challenges to unlock the corresponding ability. To choose an ability, press Square at the weapon selection screen
- 50% more health: 300 points
- Placement C4 twice as fast: 100 points
- Carry three grenades: 20 points
- Carry three smoke grenades: 140 points
- Carry three syringes: 60 points
- Carry four pressure mines: 220 points
- Unlimited ammunition: 480 points
- Close combat damage doubled: 260 points
- Trip mines disarmed twice as fast: 180 points
- Your partner has 50% more health: 340 points
Run and the grab the missile launcher from the supply
depot at the bottom left of your screen. While hiding behind the
concrete block next to the depot, throw grenades at his machine
gun. This enables you to lock on to his missile launchers (which
cause the most havoc). In order to lock on to one weapon at a
time, hold L + R while firing or throwing grenades.
Once enough damage has been done with the grenades, his missile
launchers will turn so that you may see the holes. You can now
lock onto them. From this position, shoot the left one first.
Fire two rockets as fast as possible and make sure that you do
not miss. If you miss, restart. After both rockets hit the left
missile launcher, you must run around a bit. Make sure that you
reload after the first two shots. In between the rockets that
he shoots at you, aim at his right missile launcher and get both
shots off. This may be easiest from either the tall cement pillar
or the small cement block on the right, as neither barrier breaks
down after wear. In any case, do whatever is needed to kill the
second missile launcher. You may relax a little bit now, as he
cannot hit you if you are behind one of the cement barriers. Either
grab the sniper rifle or the crossbow that you brought with you
(if over ten shots remain), and go to the cement barrier by the
left supply depot. While holding L + R, hide behind
the barrier and focus on the mine thrower on the top of the machine
or the machine gun that is tearing you up. Time your shots so
that you are hiding while he is shooting and you are shooting
while he is reloading. Try to destroy this weapon as fast as possible.
It may just happen that the Spider Mines start climbing out before
you are finished with the weapon at hand. As soon as you see the
Spider Mines climbing out, run to the supply depot and get the
assault rifle (or counterpart) and immediately lock on to the
spider mines that are coming towards you. Only about five are
released at a time, but you must kill them while they close to
the Boss so that they do not explode near you. Tap L(2)
to roll out of the way if they are about to explode near you.
Try to kill the Spider Mine hatch now, before more come out. After
you kill the left, run to the other side, as more Spider Mines
will also come out of there. Repeat the previous step then kill
off this side as well. Go back to the left cement barrier, refueling
any life that may have been lost. If you are hiding from the machine
gun, get directly behind the barrier. If you are hiding from the
mine thrower, get to the back right corner of the barrier, but
directly up next to it. Get out of the way of the explosions or
bullets. Time your shots in between his and take out the remaining
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Defeating giant Helghast
On the last chapter, you will encounter some huge Helghast
that have riot shields and electric clubs. Be careful, as two
hits from that club kills you. The best way to kill them is with
heavy weaponry. Rocket launchers would be good, but there will
not be any around the first time you encounter them. The Helghast
Chaingun works fine, however. If you shoot at them enough, eventually
you will hit them in the head and they will fall. This lets you
shoot them while they are down. Alternately, run around crates
and boxes until you can sneak up behind them, then rip up their
back with the chaingun. Additionally, when you have the mini-Boss
fight with the Colossal Helghast, the chaingun is the best weapon
to use against him. Do not overheat it too much; fire in short
Defeating General Metrac
The first area is mostly self-explanatory. Just keep
shooting at him (preferably with the revolver), and toss grenades
to force him out of hiding. After he loses enough health, he will
toss a smoke grenade and run away. Grab any supplies and take
the M82 or keep the revolver. The second area is slightly wider.
Metrac will run around on a catwalk to the right and top. Shoot
the valves on the right side when he is over there. Fire will
shoot out of the valve for awhile, blocking off that area from
Metrac. It is best to trap him on the right or in between the
two fire jets (use the object lock). Metrac will retreat again
after taking too many shots and go into a third area. Resupply,
then follow him. For the third area, it is best to use the M82
just because it fires more shots. and in the third area you don't
have much time to be precise. Metrac is in a mounted machine gun
turret, which is heavily armored. You could sit there and shoot
at the turret, but you would probably run out of ammunition (although
you can destroy the turret this way). Instead, shoot the generators
on either side. Throw grenades at them first, then finish them
off with the M82. Do the same for the other generator. The gun
will power down and Metrac will get out. He will then do the same
little dance he did in the other two areas: fire some shots, then
launch grenades, reload, and repeat. Proceed to shoot him the
same way you did before, but be careful. All the boxes except
the ammo boxes and the two crates that are directly in front of
you can be destroyed. When he is launching grenades, wait until
the grenade is in the air, then move. This will cause the grenade
to land in your previous location and not hurt you. Repeat this
strategy and you should eventually win.
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