Done it. A nice game - a really, really nice one. And also it is not hard - done with 2MG, 2MT, 8LI, 4HI, 4 repairsmen.
Piece of cake. A buggy piece, though..
Heh. Telepathy in action. The same works for carrier abuse - leave one carrier and send 3-4 marines to its wall. They will reap out the summons - but not carrier. Profit and expirience..
About upgrades.
Armor III, Shields III, Reactor III, Havok II (completely useless!), Annihilator, Missile Launcher. Thats all for me. Boss is shooten to death within three screens range. NP.