At Tai Young Medical how to defeat the 2 huge bosses ?

If you have spare praxis kits get the robot domination one (you'll need two as you'll have to buy the turret domination one first, unless you already have it). Opposite the entrance there is a room in each corner at the top of the hangar with a bridge connecting them, the one on the left has the security console that lets you shut down the robots with robot domination. You'll have to stack boxes to get it, but I think there's a staircase on the other side of the hangar. There's also a rocket launcher somewhere on the hangar floor. Or use a fully upgraded typhoon if you have ammo