interesting question I think the 2 things that a team would really want that might not have been so feasible in the mid 80s would be.
1 A tough, water proof laptop or better still a pad. With files on upto date maps, how to guides, etc etc.
2 A small drone like this
https://en.wikipedia.org/wiki/Honeywell_RQ-16_T-Hawk giving every recon team, the ability to carry out some sort of over the horizon air reconnaissance.
3 A decent mini camera with hd recording.