There are two more hovering strogg in the next room, along with the interactive panel you need in order to disable the force field. Pick 'em off (remember: head shots) and drop to the pipes below to find some health and armor hidden in an alcove. As the next door opens, watch for a pair of strogg hovering around in their vessels. Head through the doorway near the squad down the first hall. Take him out, then continue forward to run into a force field. Your grenade launcher should reach the enemy if aimed properly. Snipe those strogg out and clean up all of the lesser enemies before focusing on the strogg commander at other end of the tunnel. Follow them through the tunnels until you find some cover under a catwalk that's occupied by strogg. There are plenty of things to take cover behind, and your squad is more than capable of taking the brunt of the force for you. You'll soon enter a tunnel system that's crawling with enemy strogg. Help 'em out and stock up on the supplies nearby. When you finally return to the squad, you'll find them already engaged in a firefight. Head back and watch for strogg that have reinhabited the areas. Once Strauss has finished his work, you'll be instructed to return to the rest of the squad. Aim for the heads of the strogg to take 'em out quickly and use the nearby crates for cover. As he fiddles with it, get ready to take care of some strogg in little hover vessels. It won't mess with you.Īt the end of this walkway is the temperature control unit Strauss needs to mess with. Follow the path and don't worry about the spider to the left. Just beyond them is a doorway that leads to a chilled room (note the mist). Take out the rushing grunt first and then focus on the others (a grenade will take them all out). Move through the next doorway and watch for strogg to your immediate left. It won't take many shots to kill it and bring in two more strogg (they're weak). Use your Grenade Launcher and lob shots at the enemy from behind the cover of a holding cell. When you reach a dark room, move to the center and wait for the holding cells around you to change as a strogg commander appears in the center of the room. You can use him to rebuild your shields before leading him into the next set of tunnels. You'll be instructed to escort Strauss to another part of the complex.

A strogg grunt is at the end of the pack-kill it before entering the next room and stopping with your squad. As the lights switch on, watch for strogg to your left. Once the elevator platform stops, follow the squad into a dark tunnel.

Quake 4 strogg torso unit