In order to grab things above you, such as ammo crates, salvage points or anything else, simply position yourself under where the object is, Then, jump and melee in the air to grab the desired object. This can also be used to kill enemies above you without having to face the enemy face-to-face, or in this case, face-to-weird face like area.
ACHIEVEMENT - HOW TO UNLOCK That Coulda Gone Better (30 points) - Finish the Single Player game on Hard Difficulty. Ooooh Yeah! (10 points) - Kill 5 enemies with one L.E.O. shoulder bash. Losses (15 points) - Make it through to the lair. One Big, Ugly Motha… (20 points) - Defeat the source of it all. Hit 'N Run (15 points) - Kill an enemy by ramming them with the Inferno GX. Exterminator (15 points) - Destroy 100 Pods while piloting the Mantis. Nanergy! (30 points) - Gather 25,000 total salvage. Martian Drive-By (15 points) - Kill 100 enemies while in the Marauder Scout Walker. Crusader (15 points) - Kill 175 enemies while in the L.E.O. exoskeleton. Salvager (20 points) - Find 200 piles of salvage. Knock, Knock (15 points) - Open up the secret entrance. Things Fall Apart (20 points) - Destroy the Water Filtration Plant. Survival Of The Fittest (15 points) - Make it to the surface. Vanguard (15 points) - Escort the convoy. Secrets Long Buried (10 points) - Remove the Seal. We're Not Alone (10 points) - Make it back to civilization. I'm All You've Got (15 points) - Defend the Red Faction. Old Friends, Older Enemies (15 points) - Safely escort Winters through the depths. Plan B (15 points) - Find out how to reach the lair. Must Go Faster (15 points) - Travel to the Marauder homelands. Weather The Storm (15 points) - Destroy the Jamming Devices. Family Business (20 points) - Defeat the Mantis. Money Well Spent (15 points) - Buy out any one Upgrade ring. All For One, One For All (25 points) - Finish a 4 player Infestation game beyond wave 9 without anyone bleeding out. Soldier (25 points) - Finish waves 1 through 10 on any map in Infestation. Field Surgeon (15 points) - Perform Revival 25 times in Infestation. Boom Goes The Dynamite (10 points) - Kill 2 other enemies with a single exploding Berserker. Crack Shot (10 points) - Kill a Wraith before it re-stealths. Commando (50 points) - Finish waves 1 through 20 on any map in Infestation. Back At Ya! (20 points) - Make an enemy kill themselves while shooting at your Shell. Chronicler (25 points) - Listen to 40 Audio Logs. Cheater! (20 points) - Buy a Cheat. Honorary Mason (75 points) - Finish waves 1 through 30 on any map in Infestation. I Need A Nap (75 points) - Finish the Single Player game on Insane Difficulty. What Is Best In Life? (15 points) - Perform melee finishers on 25 Creepers (single player only). It's All In The Wrist (15 points) - Send an enemy at least 30 meters with Impact. Haymaker (10 points) - Kill 5 enemies in one shot with Impact. Zero G War (20 points) - Kill 50 Shockwaved enemies before they hit the ground. Martian Can Opener (40 points) - Buy every Upgrade. Hold Still (10 points) - Kill 6 enemies in one use of Shockwave. Lock And Load (20 points) - Keep Berserk active for at least 21 seconds in one use. Liftoff (10 points) - Send an enemy at least 50 meters with the Magnet Gun. Martian Matchmaker (10 points) - Fire an enemy into another enemy with the Magnet Gun. In. The. Face! (25 points) - Kill one of each enemy type with the Maul. Bug Hunt (20 points) - Finish at least one wave on each map in Infestation. Catch! (30 points) - Use the Magnet Gun to fling debris BACK at a Tentacle. Unto The Breach (15 points) - Gain entry into the Terraformer. Breathe Easy (30 points) - Put an end to the threat, once and for all.
"Path To War" achievements ACHIEVEMENT - HOW TO UNLOCK Air Superiority (30 points) - Clear a safe path to the Terraformer for Hale. Bird of Prey (20 points) - Allow no Red Faction to survive your attacks on their mountain base. Swath of Destruction (30 points) - Reunite Sgt. Winters with the Red Faction. Armored Cavalry (20 points) - Rescue the pinned-down Red Faction soldiers. Nuke It from Orbit (30 points) - Wipe out the Cultist military camp. Wrecking Ball (20 points) - Get 20 kills with the Shard Cannon. A Taste of their Own (20 points) - Eliminate 10 enemies using one of their own turrets. Triple Threat (30 points) - End the three-way battle between yourself, the aliens, and the Cultists. Stick Around (20 points) - Get 20 kills with the Sharpshooter. Full of Malice (30 points) - Kill Mallus.