JA2 is pretty much especially with 1.13 the only game of it's type that really does does that kind of game justice..... though I probably won't play through again with all the guns enabledOh snap I was just posting about this as well, missed your post I really enjoyed the older Jagged Alliance series.
Pity it died after BiA.
All other attempts focused too much on graphics or shock value rather than gameplay. BiA was boring in many ways in comparison and the other two..... I never even bothered with Rage.
The same thing happened with DN3D vs DNF.... it's like someone trying to tell a joke while trying to force laughs.
But yeah..... JA2 is truly funny at times in it's utter unashamed B-Movie trashy terribleness.