Yeah, IRL we're still in prototype stage for an ExoSuit for "standard" military use.
Maybe such suits, like the Space Marines from Aliens, are the norm...
Body Armor, ballistic weave fabrics, synthetic leathers and armored plastic shin/greaves.
Leather isn't Terrain Cows, but could be reinforced with metallics, chemical or even Megasaur skin?
Another way to get more Exo-Fauna, Exo-Flora and Exo-Funga into your Battletech games, tabletop or RPG.
TT