Thats the mission where you have to defend the miners or colonists or whatever they are at the beginning, fine no problem after that destroy the 2cannons fine no problem. Now it looks like every enemy is dead and the only objective left is meet with jan ors and ravensclaw but where do i find them? and the colonists leader said that i should defend their dropship (or whatever) because of the atsts or something like that but im stuck now and already walked 20minutes in this damn canyon because i read somewhere there is a hidden tunnel. please help me
thx!

At the far end of the canyon, where the third ATST comes out, there's a door to the right