I bought the RP weapon packs (years ago) before prestige weapons and most other weapon packs existed. Most RP weapons are mediocre at best. It would be great if weapon packs could be enabled/disabled after purchase. I feel the RP weapon packs hinder my chances of starting the game with more powerful weapons now that I'm higher level. I can imagine there would be other reasons people would like this ability. Maybe it'd give them more reassurance if they are deciding whether to buy a weapon pack (which cannot be trialled). Maybe someone would like to mix and match certain weapon packs, etc. But to feel penalised for buying a weapon pack which you paid extra for, is silly.
Unfortunately there has been no support for Shellshock Live 2 by Kyle (Kchamp) for a while, so the chance of it occurring is slim since he is still working on the Steam version of Shellshock live.
@Black Widow Ah I see. Well by the looks of it the browser version is still alive and well (and will always target a niche which the steam version never will), with many players on during peak hours, so it would make sense. I for one will not be buying any more weapon packs unless I know I can turn them off if I choose... I can imagine there's plenty of others who feel the same, so it'd likely help bring more money in and I can't imagine it being a particularly difficult update unless the code base is a mess.