I have a very simple, yet confusing question.

How do you make a beacon light turn on when you have selected a weapon? I tried SelectedWeapon=("Guardian") & ammo("Guardian") >= 1, SelectedWeapon=("Guardian"), and ammo("Guardian")=1, but none of these work for me. Can anyone please help me solve this issue. I'm giving an attempt at making a fully operational weapons computing system, and I'll give credit to whoever successfully helps in resolving my issue.

Thank you for acknowledgeing, BombBoi1822.