Orion does not need teamwork
Back damage from any angle, greatly reduced cooldown if you miss the ability which is hard to do, shield piercing, mark moves from killed opponent to live one, temporary stasis as part of ability, high HP and high speed. You don't have to take risks and try to sneak up behind enemies for damage or strafe around them. You can face them and they face you and you get back damage and they don't. It can solo half a squad alone. If you're being honest about the capabilities of this mech, it's just broken. With teamwork it just makes the other team need an Orion or a plan for it. And it demands immediate attention from the enemy team.