I have played Jericho at friend's computer.. Well, it is quiet very realistic about shooting, blood, parts of enemy... Graphic is great, but to have it not freezy and with good graphic it needs 2GB RAM and one of the latest NVidia GeForce or ATI Graphic cards... Jericho is really for the best technology that exists for now.
Never discourage anyone who continually makes progress, no matter how slow.