This mod fixes what Ubisoft left unfixed. Dylan's Realism Mod changes Far Cry 2 from an Africa-based sedan and pickup truck simulator into a (semi accurate) African conflict simulator. Realistic weapon damage, recoil, realistic ammo loads and weapon reliability have been added, along with a more effective stealth suit, and revamped AI weapons. (No more SPAS12s and AR15s for militiamen). Checkpoint AI has been tweaked as well. Checkpoint guards now have a 60% chance to chase you after passing through, as opposed to 90%-100% in vanilla. Militiamen also communicate more frequently in combat, and use suppressing fire more often. However, you are now as vulnerable as the AI. A single burst of rifle fire can kill you, so you are probably going to need that extra ammo and stealth suit.
I took the screenshot too late, though. Darn.
This screenshot was taken with FC2 Graphical Enhancement Suite (GES is not my mod), which I highly recommend you check out.
(GES link) Moddb.com