- Equip a unit with a weapon that has an ARCO, RCO or SOS attachment.
- Put an ACO in the uniform.
- Fill up the uniform with other items. (a ghillie suit can store 2 FAKs and one ACO)
- Drag and drop the ACO from the uniform to the weapons sight attachment slot.
- ACO is mounted on the weapon but the ARCO/RCO/SOS disappears. "Tatta! It's gone!"