The main issue with Guerilla was, that it was to easy to abuse it with sneaking during fight. A.I. can't handle 'going into sneak mode', therefore Guerilla gave damage boost while sneak made you untargetable.
Beause of the broken synergy it had to be nerfed to death as it seems.
This is baloney.
Back on the good old days of
1 AP single-handed attacks and* +50% Guerrilla, at BEST, at BEST you were breaking even, doing 1.5 times the damage of a normal (dual-wielding) attack for 1.5 times the AP cost of a normal attack. It was not, at all, in any way, OP. If anything, it was underpowered. As a reminder, Talents cost a Talent point, so they should be more worthwhile and beneficial than NOT taking the Talent.
If the problem was the AI not turning around, that is fixed with improving the AI, not destroying the Talent but leaving it standing as a hollow pointless shell like the U.S. Environmental Protection Agency.
* (bad example as even then single-handed attacks were badly inefficient with Guerrilla)
