For these cheats to work, enable the developers console in settings, then start your own server and press ~ (or the key above Tab) to open a console. Activate the following cheats by entering the corresponding codes:
CHEAT FUNCTION - CHEAT CODE
God mode - god
Walk through walls, fly - noclip
ACHIEVEMENT - HOW TO UNLOCK
Achilles Meal - As the Raptor, finish eating a jackrabbit.
Avenge me! - Score a pterosaur kill after you've died.
Bad Hare Day - Kill two raptors with the same rabbit.
Bad Medicine - Score 7 kills in a single life using the MP-44.
Bite the Hand that Feeds You - Kill a developer in online play.
Clever Girl - As a Raptor, kill Ilona after she's deployed a rabbit.
Divine Wind - Use a pterosaur to kill an enemy capturing a point.
French Persistence - Score 7 kills in a single life with the Sten gun.
Griefosaurus - Pounce the same player twice in one life.
Griefosaurus Rex - Pounce 5 different enemy players in the same life.
Helmet Trick - Kill 3 Hardgraves in one life.
It's the Rapture! - Capture a point with only raptors.
Keep Calm and Carry One - Score a kill with every PIAT round in a single life.
More like "Stompson" - Score 7 kills in a single life with the thompson smg.
Nazis...I hate these guys. - Kill one of each Nazi class in the same life.
Open BAR, dude - Score 7 kills in a single life with the BAR.
Out, but not down - Kill an enemy with a melee attack while out of bullets.
Paint the town red - Kill an enemy player by throwing him into a wall.
Pull! - Shoot and kill a leaping raptor.
Reich Rolled - As Axis, get the Styracosaur to his goal without taking any damage.
Rest for the Unwary - Use a pterosaur to kill 3 or more enemies simultaneously.
Sneaky Snacker - Finish eating 3 jackrabbits in the same life.
Star Spangled Hammer - Get five fist-kills in Berserk mode.
Stricken by the Streicher - Score 7 kills in a single life using the MP-40.
Struck by the Streicher - Score 7 kills in a single life using the k98.
That's just Garand - Score 7 kills in a single life with the M1 Garand.
ThrOWNAGE - Score a double-kill with a bite victim.
Tonight, you dine in Hell! - Kill a raptor while she's feeding.
Uz Prieksu! - Score 7 kills in a single life with the Mosin-Nagant.
What's gonna happen to the goat? - Use a goat to kill an enemy player.