1. Can't afford actually Halo Combat Evolved . . or
2. Like halo trial's player scene better
Halo Trial's net servers still host many players, as Pro's and noobs run rampant just like any other game. It also could be easier to get noticed by other "pro" players on trial, but it depends on your opinion.
The lead and lag is noticeable larger than Combat evolved.
The campain consists of 1 level and the internet games contain only the Bloodgulch map.
Its endless fun tbh.
Trial player: Yo man i f***ing own at halo trial!!!
Full version player: So?
Trial player: ...
Trial player: Dude i F***ing own at Halo trial
Other trial player: NICE!
Trial player: Ty!