Almost all fighting could be done from distances outside the range of Roman weaponry. What’s the range of the best archer, a couple of hundred yards, tops? Stay out of range and pick them off. Just bring along lots of ammo! And against night-vision equipped troops they’d be sitting ducks.
Yep. Figure out what is going on via recon. Develop a strategy to capture or kill leadership.. Including the senate and emperor. Do most of that at night using night vision.