Platoon

Stage 1 

SXKOZPVG - Infinite grenades 
SZSPYAVG - Start with double capacity magazine 
AEKESYGE - Double hits 
SXKAUYVT - Don't take damage 

Stage 2 

GAKEAPIA - Start on stage 2 
SZVAXTVT - Don't take damage 

Stage 3 

LAEGGATA - Start on stage 3 

Stage 4 

SXKEUZVG - Freeze timer 
IEVEOPLA - Play with more time 
PAKOIPIE - Double hits 
ZAKOIPIA - Halve hits 
GEXEUPTE - Start with double ammo