More than running up hills with big bergens, units doing the envisioned tasks will need plenty of patience and the ability to spend a lot of time with people who live a very different life from theirs.
The Brit detachments to EUTM Mali were from conventional units and did a fine job. Who decided "arduous courses" and para wings were necessary to engage with indigeneous forces and eat goat meat and camel milk ? 99% of the time it's a test of patience, not of physical strength or stamina.
Sounds like a perfect role for The Specialised Infantry.