Collector Wild Territory

There are 3 locations: in the building site found the location and a mushroom but no stashbag, where snipers are behind wire another mushroom no stashbag warped out to WT, tried transition area but no stashbag.
So having successfuly dealt with a screen freeze problem with instructions from TB: left the Dark Valley ditto: doing Collector. I am baffled as to where else to look in WT. Everything else was at one of the 3 locations per area.
The place behind the wire is where it was in one go through and as it was on the ground, I wonder if another layer covered it or it fell through.
All help gratefully received