J3D1_KN1GHT
Super Freak
You don't need to aim in FPV for the Fury fight. Just run up to him with a weapon of your choice and use L1 to run and gun, he'll be dead in less than 30 seconds on normal difficulty. MGS3 had the easiest boss fights in the series.
It was on xbox mate, think it was left stick click to do that.
Got that pissed off with the tranq gun I ended up doing that with the AK. Lasted like 30 seconds like you said ha!