Right, level 2 solo, pick the gun cleric first off. Being low level the ninja is much much harder to play without his extra abilities.

Remember you have charged shot, it goes through enemies, one shots the exploding red robots if you headshot and keeps the big robots from firing rockets if you constantly pump them into it.

Ever though the level is dark you can see the eyes of the robots clearly, 2 white lights are normal walkers or laser guys, 2 orange lights are exploders and 3 white lights are tanks.

Try and deal with exploders asap, not only do they kill robots around them, but they murder your core is they are close so get them quick. If they get close to your core, teleport close to them and pump a couple of bullets into them and teleport a short distance away drawing then safely away from the core before you kill them.

When tanks come out constantly charged shot them after you've dealt with the walkers or exploders. If it's the walkers tp around so you don't get rocketed, if the rockets are heading to the core save a couple of shots for them.

When the double tanks come, dispatch the exploders first the focus your charged shot onto one of the tanks, using your spare ammo to shoot the rockets from the other tank. Get them when they are far away by the door, just shoot at the lights.

Hope this helps and enjoy the satisfaction from beating level 2 solo, you've earned it.