PC Strategy1 out of 57
Gather enough experience with bow weapons
PC Action300 out of 1346
Max out all primary weapon upgrades.
PC Action61 out of 241
Destroyed the Lance Depot
PC Action3 out of 196
Perform your first Hack successfully.
PC Action77 out of 79
From whence you came...
Get sucked into the portal to R'lyeh
PC Action43 out of 66
Kill 250 Swarm with a Chainsaw.
PC Action38 out of 52
I'm the Juggernaut
Kill a Juggernaut in Special Ops.
PC Action40 out of 43
Win Founders' Tower as both factions in Campaign Mode
PC Action49 out of 277
Have all 3 generators running at once in "The Sacrifice" finale.
PC Action8 out of 153
Complete the first Thermal Discouragement Beam test
PC Strategy12 out of 63
Grow the Tree of Wisdom to 100 feet
PC19 out of 264
Beast Slayer I
Defeat Ordrak on Easy or Normal
PC Action56 out of 219
Stun a Tank with an explosion in the Crash Course campaign.
PC Action7 out of 45
Acquire the fully powered Aperture Science Handheld Portal Device.