Probably not of interest to many ( But this mod is listed as working under OA) as only a few of us still seem to play the mod but under OpenArena release 0.70 the values in cvar.cfg in the rq3 folder have to be set as
r_gamma 0.000000 1.700000
rather than
r_gamma 0 1.7
Previous versions of OA were fine.
Game plays well missing textures on a few maps are fixed
but now the scores don't show when you hit the tab key