I'm currently running on the Episode 1 engine of Source, and it pretty much isn't supported much.
I'm planning to move over to the Orange Box engine where HDR is less buggy and there are pre-set and pre-made codes (Classes, Teams, Payload, Control Point). Problem right now is the Orange Box is way buggier than I could imagine. I haven't really done much in the episode 1 version of BlatterSplat so switching to Orange Box would be easy.
What do you guys think?
One thing I especially like about orangebox is it's particle editor, really cool and fun tool to use.