This is more general advice for this trophy
-Don't try a capture until you see a skull on minimap
-Higher chance when they go to rest or just stand there panting
-Capture investigations will have EZ shock trap in the chest, this is an extra trap you can carry
-Make sure to have 1 shock, 1 net trap, and a bunch of tranq bombs
-My strategy is
A.If Awake drop shock/net trap first, then drop tranq bombs 2 seconds a part
B.if Asleep drop tranq first then shock/net
C.If it still isn't captured first then hit it a few times as the Hp threshold might be slightly high