Hey all. Not sure if anyone's still reading this board since the game is older, but I'm just playing it now!
Anyway, I'm going for the 'Gun Nut' trophy and having trouble. My tranq rifle already has the target leading mod on it, and it will not give me the option to combine a reload speed mod on it either. I assume this means it's already fully upgraded, but I didn't get the trophy. Am I missing something? Is this a known glitch?
There no glitch, you have to upgrade only one of your lethal weapon to the maximum. For example, I got the Gun Nut trophy by upgrading the handgun because it was the most easiest to upgrade. (at least for me)
I hope that helps