To get all of the stars in Spec Ops do you just have to do the objective? Is there a time limit for all of them? For instance, a buddy and me had it on veteran and did it all but we didn't get the 3 stars unlocked.
Yeah, certain missions have time limits to get the 3 stars. Going over the time limit won't fail the mission, but to get all 3 stars you need to do it quicker.