[zarlor]

Yeah, it depends on how the weapons work. For example I've taken to something like a bayonet where I create two versions of the weapon, the base bayonet and a "Bayonet, Mounted" entry. The latter I have bootstrapped to the former but I give it a value of 0, weight of 0 and set it "Hidden" so it's not listed as something a person could buy. That way they just buy the bayonet but also get an entry on their sheet with the stats for it when it's mounted. Setting the weight to 0 also make sure they aren't charged twice for that weight in calculations. You should find an example of that in the Weird War II data file, if I remember correctly.

Now if the grenade launcher is just always integral to the rifle but being mounted on the rile doesn't otherwise modify the stats of either the rifle or the launcher (although usually for grenade launchers many stats depend on the type of grenade used) you could just leave it as a separate weapon anyway. In other words if there is no obvious game mechanic that applies to the two weapons being physically connected then there's no real reason to not leave them as two separate weapons anyway. The player knows they're combined so there's not much benefit to trying to otherwise annotate that on the sheet, I wouldn't think, and thus no realy need to make things harder on yourself to worry about coding something for it.