Just finished the last boss and it goes to show that difficulty is an oppinion, not an absolute. Some in this thread have reported that he's easier than Greene, I've had the oposite experience. While Greene was a walk in the park (she doesn't move, for god's sake!), the Supreme Hunter took me almost ten tries to finish.
First of all, it's a timed fight, but you don't get to see the timer until the last minute and a half. Second, the Supreme Hunter has a one-hit-kill Tentacle Rape Devastator. Same as yours, only stronger. It WILL kill you, even if you're at 100% Critical Mass. He also has a plethora of damaging moves, jumps and attacks, all of which can drop 1/5th or more of your health. He'll also completely ignore the soldiers and choppers shooting at him.
As for attacking him, I can safely say you might as well forget melee. You'll land 2-3 hits, and then he'll kick the shit out of you. Even if you try landing only one hit, he'll still get to kick the shit out of you. And to add the cherry on top, you'll likely get hit by all the rockets the coppers are shooting at him.
Forget air attacks. If you start flying, he starts blocking. Air Slice does practically no damage at all. Forget hijacking choppers. The damage they do to the boss is crap, and he'll shoot you down in about 5 seconds.
Forget Armor, it's crap anyway and any serious fight requires mobility. This one is no exception. You can use shield if you want, but it's not neccesary. The attacks that can kill you in this fight can't be blocked anyway.
I'd suggest using the Blade, it seems to have the fastest Consume animations and you need that.
The only remotely reliable method of taking him out that I've found is the Critical Pain Devastator. If you can land this on him, you'll take out a nice chunk out of his health bar. Dodge one of his attacks and trigger it while he's recovering. Also, use the regular version, not the air version, he'll usually block the air devastator. Be careful when using Crit Pain, it gets stuck on ANY obstacle between you and your target. Also, it has a fairly limited range, so you can't shoot him from across the carrier deck.
On the subject of consuming soldiers, there's plenty of them, but you need to catch a few seconds of peace to gobble them up. Your best bet is to grab a soldier, sprint close to the Supreme Hunter and get him to start swinging. Then while he's recovering, eat the soldier, grab a new one and repeat until in Critical Mass, then hit him with Critical Pain. Remember to dodge to the side as soon as you finish firing the Devastator since the Supreme Hunter will likely be on top of you and swinging like crazy. You're invulnerable while in the Devastator animation, but as soon as it ends, you'll be standing next to a very pissed and very powerful infected.
Remember to keep your eyes on the Supreme Hunter. If you see him stop and start spazzing out, it's likely a sign that he's charging his Devastator. Run away and use the time to eat a few soldiers. If you're in Critical Mass wait for the tentacles to fully extend, then hit him with Crit Pain. This time the flying version will work as well.
And one last thing, try not to fall off the carrier. It's hard getting back up since Alex will regularly get stuck on the lifeboats and fall back into the water. If this happens to you, try to airdash along the hull of the carrier to a part without lifeboats.
Hope this helps some of you
