While playing, press [~] to bring up the console, then type any of
the following codes:
GIFTFROMPTERODON - Enable Cheat Mode
CHTHEAL - Restore Health
CHTHEALTEAM - Restore Health for Team
CHTWEAP # - Get Weapon # (0-30)
CHTAMMO - Refill Ammo
CHTGRENADES - Get Grenades
CHTALLQF - Access Quickfights
CHT3PV (0/1) - 3rd Person View
SHOWFPS (0/1) - Show FPS
SHOWPROF (0/1) - Show Stats
CHTCANNIBALS - Vietcong Wear Masks
CHTKOSTEJ - Enemies Can't Hurt You

Weapons listing for the chtweap x command where x equals the weapon you want.
2 - AK47
28 - Baikai IZH-43
7 - Colt M1911
18 - Degtarev Machine Gun
5 - DP2 Machine Gun
25 - M1 Carbine
4 - M1 Garand
24 - M14
31 - M14 with optics (M14 Sniper)
1 - M16
17 - M60 Machine Gun
27 - M79 Grenade Launcher
9 - Makarov Pistol
26 - Mosin-Nagant
6 - PPS-41
23 - PPS-43
11 - Remington 870
10 - Revolver 38
22 - S&W model 39 (Silenced Pistol)
3 - Scorpion
15 - SKS Simonov
32 - Sten (Silenced Submachine Gun)
14 - SVD Dragunov
16 - SVT40 with optics (SVT40 Sniper)
21 - Thompson
8 - Tokarev Pistol
13 - Tokarev SVT40
29 - US Knife
19 - US-M3
30 - VC Knife
12 - Winchester 70