I was watching LGR’s Unreal Tournament 2004 video and in terms of amount of available content and the sheer size and scale of the maps, it makes the multiplayer of every single Halo game on the 360 look quaint by comparison, and UT2k4 came out a year before the console even launched.
LGR complained that Unreal Tournament 2003 from the year before only had 37 maps, which is crazy considering most multiplayer shooters on the 360 had maybe 10 maps with additional map pack DLC costing like 20 bucks for 3 maps


Half Life Counter Strike and later CS 1.6 custom maps were the absolute JAM. i remember some dude made a map modeled after his bedroom where everything was scaled enormous the players were basically tiny mice running around killing each other.
shit ruled
Before I even read your description I was going to say de_rats was the shit, console gamers would be amazed at the glory of it
csde_gimlirats was a great map in the rats tradition, and probably my favorite map. The helms deep one was fun too, and the surf maps were fuckin wild.
I remember de_rats. AWPfest (also, I was bad at FPS)