I hate it because well i have a few reasons..
1. Everyone uses rockets... banshees...tanks...and snipers... thats it..
2. Singleplayer is boring to me.. Nothing new... I like Half-life cause it was original. And it's basically the granddaddy of online shooters. And don't say it's not. 70% of people playing online games at this moment, are playing some version of Half-Life. It has soooo many mods, actually there are more mods for this game then anyother game out there. Thanks for Valve making it really easy for modders to make there things and transport data to the new engine. So for all the famous mods that were out there for the 1.5, 1.6 etc.. made it easy to make a new one for the Source engine, with out having to start from scratch. And 10,000+ CS Source servers all payed for? WOW! Server companys make seriousm money off of CS. Any just remember, more people are on 1.6, then CSS!
I'm sorry, Halo really does not stand out to what it's saposed to be. The game is fun, but not as much fun as the ones that started the genre.