Return to Castle Wolfenstein help

[Kalit]

All right, I'm finally trying to beat Return to Castle Wolfenstein, and I'm stuck on Mission 3 part 1. It's towards the end

Spoiler

where I need to sneak past the last guard I can't kill and get into the truck. I tried to hug the far right wall behind the crate thingys, and he always sets off the alarm. I looked at walkthroughs, they all said that. I also tried running straight to the truck, alarm.

I'm playing on normal difficulty, I've tried this a lot of times, same results.

 

[DACMAN]

If I remember correctly you can kill everyone in the level with the exception of the guy to the far left of the truck. He should be behind a wall and as long as you stay to the far right fence he'll never see you. The one right next to the truck you should be able to kill. Snipe. I remember doing that. It's been awhile.

 

[Kalit]

Yea.. that's what I've been doing... staying right up against the right wall.. yet alarm every time. I already killed the one next to the truck.

 

[DACMAN]

Did ya snipe the guy on the tower?

 

[Kalit]

Yep, the only guy there alive is the very last guy that I can't kill, killed everyone else in that camp.