Soldato
Why do they always spoil it by adding multiplayer achivements. Some of us just like singleplayer but now can't 100% the game. Feels bad man.
There are literally two MP achievements, which you'll get from about 15 mins of playing.
Reach Lv5, win 1 match. Hardly a chore!
Just go in a team based objective mode. you'll have them before you know it.