Need a bit of help with AVP2

[Captain tycho]

I have a quick question, about how to beat the first Predator mission, 'Trap.'
I ran around over the canyon floor, and I can't seem to find any way to move on. However, I saw alot of paths that are up on the canyon wall, which I can't reach. It's been a *very* long time since I've played AVP2, so please forgive my noobishness.

[Laird]

When the cutscenes have run through, you'll be presented with a view of two APCs - one driving off. Straight away hit your cloak and head left down the ledge towards the corridor; run in there and chop-down anyone in your way with the combistick.
In the next section, you'll see the APC you were pursuing start to drive off. There's also a nice tree you need to get to - get to it. And now, for those bonus trophies, cloak and knock off the two marines wandering around on the right, and then proceed towards the crate near a tree.
Kill the marines that linger behind the crates, then jump up the tree and follow the ledges around to the right. Once you come across a big door, you'll see it admitting an APC - but leaves you stuck outside.

Heh, don't worry. Above that door is a ledge... and yes, you guessed it, more tree-jumping. Once you finally get across, a marine will come out of the corridor so be prepared with your combistick.
You'll be greeted with a marine who's warning everyone that you're close. Gun the poor guy down and then be on your toes; downstairs is the first android you'll encounter, and he's packing a smartgun. Kill him and all other marines.

Having cleaned up in here, you've got to do a whole heap of tree-jumping to get onto a really high ledge. Head towards it and hey -- presto! You've completed the second level.