Blow it up!

So the plan is: you break into the camp, you plant mines, and you get out. Sounds simple, but there are nuances.
Their cannons shoot from special platforms. Every now and then they move away from them to recharge or reload - I don't know for sure. As soon as a cannon leaves the platform, run up to it, plant a mine and retreat. When the cannon comes back and touches the mine... Boom!
I think it's gonna work!

Bide your time, plant a mine, run for your life. It's simple!

Whoa, that was quite a kaboom! I bet they didn't expect that. Now we'll see who gets the last laugh!