While playing in multiplayer mode choose the lobby find the rocket laucher shoot all signs, posters, and spray paint on the walls to reveal secret rooms. Each containing different weapons and heath on suit options. One room even contains a fusion rocket laucher that is like the BFG in Doom.
when your at the guy in the bubble part, you will see just before he pops out of the roof eos will blow a hole in the wall across from the door you came in and up the ramp. run over there go in the hole in the wall and get all the ammo do it quick or eos will die and the game will be over. you should have the sniper rifle by this time. if you sneek down the ramp and stay behind the first post in front of the hole you can look through the scope and see the bubble guy with out him seeing you. start shootin. the sniper rifle is real powerful and will burst his bubble after a few hits. once he is down on the ground open up on him with the assault rifle.
in multiplayer go to the badlands. get the rocket launcher when u have it go foreward to the wall. then shoot it going downward leading down to the bottom of the pit. jump into the path and easily fall down. but dont jump off.
P.S. make it deep or u will keep on bouncing off
P.S.S. get gun and fall down so u will have ammo while ur down there.
also in the badlands get the rocket launcher. go to the bottom level (not the pit)at the ends of all the path on top shot them so then the uppper level fall apart. this is also good for the hint on top so the bots will die and give u guns to
in the lobby blow up all the grifiti and then u can get health and guns. u can also get to the roof of the lobby
there a 3 ways
1.go to the upper level and shoot the side of the wall then do it higher and higher and higher. with what i said u should have made stair for yourself
2.get a rocket launcher go to the top level there shoud be supporter thing shoot in front of it (low enought to jump on) then shoot another side next to it then shoot the top then u can jump in it.
3.there are to side one that has a strait wall and one that is on an angle and has a window. get a rocket launcher go to the top level at the side with the window and slant at the bend shoot it and then
1. shoot all grifiti
2. make holes deep hole so bots can fall in them
3. im workin on it
if u have any codes or hint i might not no email me at firstname.lastname@example.org
On the multi player level "warlords" if you get the rocket launcher you can make a tunnel from one base to another. All you have to do is get a rocket launcher and shoot the ground in front of you base until there is a small hole then get in it and shoot the wall of the hole torwards the other base. You will die a couple of times from the explosions but it's really fun to do.(It also helps if you have a friend over to help).Also you can just dig a big hole or make trenches with the same process.