Here is the full list of all 31 GOAT OF DUTY achievements.
Win 340 matches in any mode.
Kill 500 opponents with Headshots.
Win 50 Gun matches.
Win 50 FusRoArena matches.
Win 100 Team Deathmatches.
Win 50 Free For All matches.
Ram 25 opponents to death.
Send flying 50 opponents with the FusRoBeh.
Kill 250 opponents with Explosions.
Actually, your opponents will complete this achievement for you.
"Don't move! He can't see us if we don't move."
Snipe 50 opponents with the LightGun.
Kill 25 opponents with the Zero-G Saws. (Alternative fire)
Explode 50 opponents with the Missile Launcher.
Impale 50 opponents with the Impaler.
Kill 50 opponents with Headshots.
Cook 50 opponents with the Roaster.
Detonate 50 opponents with the Grenade Launcher.
Slice 50 opponents with the Ripper.
Nail 50 opponents with the Piercer.
Push 50 opponents off a ledge.
Ram an opponent and kill him midair.
Kill 25 opponents in a row without dying.
Yes, we developers make achievements for you, bug-seeking goats.
Bleat 100 times. (In this game)
Also goats have their special place.
Kill 10 opponents in a row without dying.
Kill 101 opponents.
Goats bodies are not made for flight. But they dont' know that, so they try it anyway.
Don't expect they will explode for real.
Hit an opponent 5 times with Ram or FusRoBeh without making it touch the ground.