Okay, I managed to get through the teleporter. I got the plasma grenade down from the weapon holder, and...I'm stuck again. Can't find any way...
I figured. There's a teleporter somewhere, isn't there? I've walked against all the walls, but didn't find anything. [EDIT] I can HEAR the damn...
I'm stuck as well. Can't get past the third room (the one with the fusion coil).