It's got everything you could hope for in a mutiplayer HL game. 100% skill based combat without any game-breaking weapons (it can be quite hard when you start out, but if you keep up and learn from it you can become an experienced player in no time!), multiple strategies to choose from (be a quick gunslinger as the Sharpshooter, be a tank with Heavy Knight, be legend of a thousand worlds playing as the Archer, and etc...), zero medics to help you so you have to be quick on your feet and watch out for other teams (especially when capturing territories), incredibly well done for a mod voice acting with great wit and humor including some pop culture references. amazing maps from experienced modders that range from simple hack and slashs within one room to Xen-like worlds, and an active support team full of people who actually know what they are doing for a change.

And best of all, it's 100% free to play.

What's your excuse for not playing it?