I've never once been able to destroy a rex charge with ordinance alert equipped. For those of you that don't know, Ordinance Alert, on its highest level, warns you when an enemy is aiming in your direction. This proves to be valuable to avoid sneak attacks.

So I had a thought today: Ordinance Alert is the solution to auto armor. 95% of AA users claim that they only use it to avoid OHK weapons. Well, these weapons are not OHK if you have armor mode equipped. So if you're warned beforehand that you're being aimed at, you should have sufficient time to activate armor mode before being shot. This should work pretty frequently, as it takes some time to aim a gauss/bow shot accurately. If it were easier to get this perk leveled up, then there'd be no real excuse for using AA. Sure, you'd still get OHK'd sometimes, but it wouldn't happen ridiculously often. So what do you think? In theory, this idea works. Its not 100%, but then again, AA IS 100%, and thats what we hate about it.