I hate when games include real-life guns and don't provide any useful way to distinguish between them if you don't know which ones are good at what. Is the ARF-298B a good medium-range weapon that won't be effective at long range? Unless the models and sounds are very good, I'll never know unless I find some website somewhere and look it up. I don't even know what exactly counts as a rifle (I just think "long, slender gun"), let alone know which guns are best for which situations. The Doom, Unreal, and Wolfenstein series did excellent jobs at letting me know which weapons were best suited for which tasks. The Half-Life series did a pretty good job. A ton of games do a terrible job, just assuming that you know this stuff already. I think that Counter-Strike is the worst example of this that I've ever seen; if you don't have knowledge of modern firearms you're pretty much worthless at buying equipment. (Maybe it's better now; it's been years since I've played, for good reason.)