I dunno what the problem is. I've gotten both crates. Remember where Stranger landed in the in-game movie when he first arrives in the Grubb town and meets the female leader? Well, go back up the path back to that area. Around the corner is a rope. Climb up and onto a platform. There's another rope you can climb all the way to the top.
You'll see a few boombats and stingbees flying around, but more impotantly, there's an orange crate of Sniper Wasps all for you.
Correct me if that's not the crate you're looking to get to.
Also, there's another crate of sniper wasps underneith the pathway.
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