Bug/Glitch: Use Thermal Vision without having any vision selected as your primary. Reproductive steps: Select a primary weapon, Do not give it a vision enhancement. Equip a secondary weapon and give it thermal vision. Once in the vehicle, Hold left click while on your primary weapon and swap to your secondary weapon, then back to your primary. If done correctly the thermal vision will remain on despite your primary weapon not having any sight attachment selected. Weapons Used in first glitch were the 1-2 missiles (I forget the name) and the ESF Nose gun that has the insane clip (I also forget the name its 3 AM in the morning, Don't judge me). I did not test this with any other vision enhancement. It could be possible to reproduce it using any weapons on the ESF platform.