|Photo from www.janes.com
The exoskeleton "enables a soldier to carry a load of about 50 kg." A modification currently in trials will enable a soldier to "easily carry a general purpose machine gun," in addition to his personal weapon. This would turn every squaddie into his own fire support element.
If it is being developed now, at the equivalent of Traveller TL-8, it could be in general production at TL-9. Book 4 doesn't cover anything like this. That means I get to make it up myself!