I think it has been agreed before that:
1.Covop lvl 4 (assasin) is completely useless.
2.Sniper damage gets strange when people have lvl 3 battle sense and 5 medics on their team.
So merging these two problems and making an answer:
Covert op lvl 4 should give the following bonuses:
-Sniper damage on torso +10 (goes to 60) and to head +50 (goes to 150)
This way covert ops become more usefull even in long (more than 3 map) campaigns.
