Riker's Maps
Infinity remakes of some classic M1 levels... these bring back memories. (I even remembered where the flamethrower was on KillKillKill!) In general, these are much brighter than the originals... this may disappoint you if you like to lurk in shadows (which all three of these maps were good for). Two versions of Billy... one with media and one without.
Levels in map "Billy M3":
Billy! -M3cr
Billy! -M3cr
Levels in map "Kill!Kill!Kill! M3":
kill! kill! kill!
Levels in map "What Goes Up M3":
What Goes Up, Must Come Down