I tried and got stuck at the shooting range after using the fixed machine gun. The instructor stops talking after that part of the training and you can't go anywhere.
coop was premised to be released as a patch for the game AFTER releaseThey seams to be an ominous lack of coop that was promised. Also skipping briefings can cause a crash.
i noticed a bug at sniper rifle training, it kept reloading forever
Singleplayer is nice, pure raw ro with decent bots
Ah ... and I gotComplete the full campaign on recruit or above
and
Complete the full campaign on soldier or above
by only playing 3 missions.