Here is the full list of all 15 SHOCK TROOPERS achievements.
Use all the weapons
Pick up 500 power ups
Complete the game dying more than 40 times
Complete the game in "Team Battle"
Throw 500 grenades (2nd weapon)
Play with all characters
Complete the game in multiplayer (local or online)
Complete a stage without dying ( "Lonly Wolf" )
Kill 1000 soldiers
Complete the game in "Lonly Wolf"
Complete the game using less than 10 credits
Reach a score of 5 000 000
Throw 100 grenades (2nd weapon)
Kill 500 soldiers
Complete a stage with full life