Ahh, I was waiting for the post with the explosion to post - no point heading back if there is an explosion 10 seconds after the blaster fire!
I have posted now, but I remember the GM describing a fork in the canyon, but I cant find it now, so I can go back and edit my post!
I had also pictured the fight happening up on a ledge on a narrow mountain pass for some reason :P
I try not to read stuff my character is not seeing, so I only glanced at the previous post.
The Force:
Up the valley, you see a repulsorlift vehicle slowly crawling up the valley. It appears to be an Imperial troop transport, lightly armed but capable of carrying a squad of stormtroopers. They are about a kilometer away. The transport speeds up as it nears your position, heading directly towards you.
The Force:
Up high, on one of the pillars well behind the troop transport, Forim sees the glint of light off a lens. Someone is tilting a lens, probably on a sniper weapon.
So the troop transport advanced, but the sniper was more then 1km down the canyon. That is what I was remembering from the description of the area (which is why I was surprised you caught up at all, with him having over a km of lead)