Yeah, I've had Truth ever since it could first be bought from Xur. Since that time I've always been able to load 2 rockets into the mag, not one. Who knows, maybe mine was somehow glitched but it's always been 2 for me. As others have suggested it's now 3 but you have to reload it; it also still reads 2 in the weapon's own in-game description. I'm guessing this will be patched in the next mini-update, maybe with next week's Dark below expansion.