A awsome series classic.
One of my favorite features of unreal is the variety of vehicles. Most games will have a few and they arn't that useful to use. In unreal they are key and can easily turn the tide.
Also the support this game has is amazing. Last time I looked it had over 400mods and 600 maps and that is awsome. Another thing that I enjoy is being able to play single player along with skrimishes against bots. Most game just have single then you have to play online. For a long time we had dial-up so this was impossible but with bots i was able to play all time. Then would go to a friends and hook up and kick some butt.
If you love just shooting and tactics without the hassle of missions this game is perfect.