... with a template to hit the camo marker behind the mine? Lets say a two camo markers sit behind a building. I first move into LoF of both camo markers and the first marker is a mine that triggers. Can I now shoot my chain rifle at the reavealed mine with the intend to hit the camo marker behind the mine with the template?
Only if the Mine was already revealed. Mines simply trigger and detonate, rather than declaring Skills, so they never actually leave Camouflaged state when going off. This is specifically to prevent what you've described being done with a Chain Rifle, Shotgun etc. ;-)
I asked the same question some times ago. If the mine wasn't camoed : yes you can shoot it If the mine was camoed : mine triggering is not a cancelation cause for camo so the mine stay camoed even when it trigger, so no shot on it Edit : I wasn't fast enough