For the topic of this thread:
I have flown the Il-2 quite a bit recently, and come to like it very much. I have to complement HTC on their work there, and I doubt that either IL-2 durability or firepower could be tweaked anywhere without spreading the whole planeset on a wider scale.
(Which is, BTW, what I think that should be done;)
Anyway, I have found the IL-2 to be the most durable plane I ever flew, no matter whether I was being shot by GV's or planes, and also it packs quite a punch. I find no better plane to pop osties in than the Il-2. And scrambling from a capped airfield there is simply nothing better to survive in than the Il-2, it can take quite some bursts before going down, and even then, it may stick together.
Also, people often make the mistake of HOing an Il-2, and also underestimate its turning circle, - that brought quite a lot of meat on my butcher's table you know.