Far Cry 2 had incredible potential but was fucked to hell. Enemies detected you way too easily, the respawning checkpoints were incredibly annoying, mission design was laughable, the shooting mechanics were mediocre at best, the plot was a laughable rewrite of Heart of Darkness, weapon degradation was annoying instead of cool, the guns were bad...yeah. Lots of problems. But...it was fucking gorgeous, and the potential of an open-world sandbox fps is incredible. Starting a fire upwind of an enemy camp and burning them out was awesome.