hmmm i would
1. entrench now creates 360 protection reduces all damage by 50%. Because it stops working when you leave cover needs to be a big boost to D.
2. sniper volley now increases armor pen. by 1% per snipe, ambush, tick of series of shots, and overload shot. Stacks 25 times. Changes from buff to debuff so does not apply benifit if constantly changing targets.
3. crit hits now have a 50% change to ignore all armor.
4. rapid fire stays the same but each tick on the next two series of shots within 10 secs now applies 2 stacks of armor pen.