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Half-Life 2 Hints
I don't want thumpers on now, do I? How can I turn them off?
1 of 5: You don't want thumpers on because the whole antlion situation is now totally reversed -- instead of scaring them off, you want to keep them with you and guide them in battle with the pheropods.
2 of 5: So whenever you come to a working thumper, you need to figure out how to turn it off, then give your bugbait a squeeze (Secondary Fire) to regroup your entourage.
3 of 5: Examining the thumpers you come across here, you'll see that they're a bit different from most of the others you've encountered.
4 of 5: They do have a red-light-green-light control panel, but it's up at the top of a ladder.
5 of 5: So climb the ladder on each thumper and use its control panel to shut it off, then climb back down and continue onwards with your antlion army.
