Die to the Makron at the end of the act. You will know that you win when he shoots a purple ray at you. This is where it gets really hard. The Makron, depending on how much health and armor you have, can easily kill you in one-two shots with a hit. One from a grenade, two from his rays he shoots out. The best strategy is to try and get into the boss fight with at least 70 health and 70 armor, or at best 100 health 100 armor.. trust me you'll need it. Strafe jump and crouch to confuse the rays, and when he shoots the grenades out, run for the hills. After they shoot out and blow up, use all your nailgun and hyperblaster ammo. He will go down, he's just going to take a while. The best strategy to beat general is simple - Save everytime you kill a strogg. Trust me, you will have over 200 saves by the time Act 1 is complete. Autosave is useless. Try to conserve your ammo, snipe with the machine gun is a great option to conserve ammo. Just save constantly and it'll be a breeze!