The trick with burers is staying about 10-15 meters away and watching their attack patterns. They'll try pulling your weapons away with their psychic powers but theres a rhythm to it. Use assault rifles or snipers and focus on headshots while they're vulnerable, when you see that blue barrier pop up get behind something solid right away. Really important to keep backup weapons ready since they love yanking your main gun away. The shield patterns pretty predictable, so time your shots for when it drops and maybe interesting to know grenades actually work through their barriers. Watch for flying objects they throw and keep moving between cover spots, grab your weapons back quick when they drop them. If you maintain medium range and time your attacks between their shield phases youll eventually wear them down, just dont get greedy with shots when their barrier is up. Tip - always carry at least two guns since getting disarmed is basically guaranteed, and make sure you have some grenades ready before starting the fight.