Oh, yeah, my thoughts. Okay, so...
Crossover RP's are typically geared towards fans of both franchises. We're wanting to do a Half-Life RP. However, here's the problem: the majority of people on this site are young, and Half Life is both old AND rated Mature, so there aren't likely to be many fans around, or atl east of the original HL.
So, what I say is, use HL as a template, but make our own original RP based on it. Not a true HL crossover, but one that is loosely based on it. Also, remove all direct HL references; no aliens, no G-Man, no anything like that. That being said, we can find alternatives to these elements so as not to completely eliminate them.
What do you think?