Full Invasion 2 is a co-op module for Mount & Blade: Warband where players come together to survive countless waves of invading enemies and bosses. It has been voted one of the most popular multiplayer modules within the community, and is still under active development to this day.

WCCC says

8/10 - Agree (2) Disagree

Magnificent mod for a good game. I think it taps into a lot of fresh ideas that are well executed and really exercise the full power that stems from the powerful base that is mount and blade.

That being said, it runs awful and horribly unoptimized, and this isn't just some FPS stuff (Which actually isn't in my list of performance issues), this is all about how clean the base program runs when given the burden of its plentiful content:
-Does not run on 32 bit PCs. That alone is kinda scary to me as a programmer. What the heck are they doing that destroys the compatibility so hard?
-Monstrous boot up times. Expect 5 minutes or upwards even with 4GB of ram at your disposal. This is partially due to the large amount of content, but it seems it's all loaded on bootup and leaves no loadtime for later... I'm not sure which would be the greater evil in this case, honestly.
-Crashes pointing to the EXE, rendering device, and sometimes nothing at all. I have friends that crash almost never, but I personally can expect to crash a few times a day, especially when maps get changed a lot. Combined with bulletin 2 this makes this game absolutely frustrating to play on a constant basis. Can get a half hour to a few hours of straight gameplay, worst case scenario, but its aggravating bootup and unpredictable nature make this still a bigger load of crap than any playerbase should have to contend with, even if it isn't evenly unstable for everyone.
-A few tiny bugs or undesirable bits, and that's less about performance and more about just how well some of the content is checked over. Additionally some of the content isn't bugged, but is just intentionally presented in a bad manner. Not all, but a fair dose.

That being said, the community is tight knit and are fun to play with, social norms are very easy to adapt to, and even those with minimal M&B experience can play well and have great fights. This truly is a great mod, but it needs cleaning up in many areas to become proffesi