You'll encounter these beasts mainly during ad astra per aspera, and the first rule is pretty simple - sometimes running is smarter than fighting. When you're making your way to clear sky base, follow the mission markers and dont try to be a hero, the game actually wants you to escape here. For actual combat scenarios, the freedom colosseum fight in round 4 is where you'll need some tricks - get yourself up on those stacked crates right away, the elevation really messes with their attack patterns and gives you breathing room to actually deal damage. The caved-in train tunnels near the sircaa checkpoint work pretty well too, just make sure you're using those concrete chunks as cover.

Really important to remember that open areas are basically death sentences, these things are way faster than you think. Keep about 300 rounds minimum for your assault rifle, sa avalanche works great here, and scatter some energy drinks around your fighting spots beforehand. Tip that might save your life - incendiary rounds first to soften them up, then switch to armor-piercing. The vpc mirror complex has some nice collapsed structures that work well for cover, and if you see emission warnings pop up, those shelters are absolutely lifesavers.