It has more mods and plugins than any other game i know.
If you just don't like it, its very easy to make it look like the game you want by just getting certain maps and skins. Also the game itself is easy to change, not just the looks but the mechanics itself by making yourself plugins. If you are not experienced in this, there is already big group of people dedicated to it.
https://forums.alliedmods.net/ (plugins) and http://gamebanana.com/ (maps/skins)
But there are also servers in which you can just play the game as it is and try to get the highest rank.

It has more mods and plugins than any other game i know. If you just don't like it, its very easy to make it look like the game you want by just getting certain maps and skins. Also the game itself is easy to change, not just the looks but the mechanics itself by making yourself plugins. If you are not experienced in this, there is already big group of people dedicated to it. https://forums.alliedmods.net/ (plugins) and http://gamebanana.com/ (maps/skins) But there are also servers in which you can just play the game as it is and try to get the highest rank.