Resident Evil Revelations

One thing to consider is that playing this stage at level 50 means that you will have to fight "Dark Norman". The stage itself will be a little easier at level 50 but then you have to fight him.... He is very strong and deadly. So, I suggest playing at level 49.

Normal Norman will chase whoever inflicts the most damage. Ghost Norman/2nd Norman has two phases and both have different tactics. In either case, you should heal after any damage as he can kill after 2 hits. The first phase is weak to pistol, machine gun and shotgun. The first can also be easily be dodged by hiding behind the box. The second phase is weak to rifle and magnum.

You will need to have weapons that will help regain ammo and health. Fangs and fertilizer will help with health. Ammo magnet and cornucopia will help with ammo. Double or triple burst on a weapon will be essential on the Norman fight. Cornucopia and burst parts are only found from trinity bonuses on certain stages.

Abyss Stage 1-3 burst 2 or pouch 1 (burst fires multiple shots and pouch recharges grenades)
Abyss Stage 4-6 charge-shot 1~2 or pouch 2
Abyss Stage 7-9 medal of courage or pouch 3 (medal of courage allows you to play lower stages without your weapon's stats being affected EASY TRINITY BONUSES)
Abyss Stage 10-12 cornucopia 1~2 or pouch 4 (cornucopia recharges ammo)
Abyss Stage 13-14 burst 3 or pouch 5
Abyss Stage 15 grenade launcher
Abyss Stage 16-17 charge-shot 3~4 or pouch 7
Abyss Stage 18-19 cornucopia 3~4 /pouch 8
Abyss Stage 20 pouches 5~6~7~8
Ghost Ship- gluttony 5 (magnum)
Ghost Ship Chaos-STARS 2, FBCA 2, BSAA 2 (STARS2 is an auto-loader for any weapon and reduces recoil by -60%, FBCA 2 replenishes ammo x10 every 30 seconds and acts as a ammo magnet, BSAA 2 replenishes a grenade and a shock grenade every 180 seconds)

The first half of ghost ship can be handled with a knife only. If you have a weapon with a title "easy grip" that will give your knife attacks an increase in power.

The quickest and safest route to take is this:
-Get the first elevator key.
-In the hold, take the route that has you swimming and get the key from this area.
-Go back up and go to the casino and clear that room
-Head to the solarium. Clear the first half of the room including the guy by the diving board. Swim to the back half of the room and clear that; you can clear this area by swimming back to the diving board too. Kill the crawling enemy near the diving board to get the key.
-Head to the cafeteria and run through this lower area. You should only have to fight a few of the big grabby guys.
-Take the elevator to the bridge. Run through this area and take the next elevator to the deck.

The final fight is a series of enemy waves.
-first wave can be handled with a shock grenade and a pulse grenade
-second wave use a decoy to lure the exploders
-third wave decoy and pulse grenades sparsely as you circle the freight container
-the orange and blue rockmen in the forth wave are best dealt with regular grenade; the purple one will have to be dealt with a combo of regular grenades and bullets
-fifth wave decoy and shock grenade
-sixth wave eliminate hunters while using decoys on wolves
-seventh wave use stun grenades to eliminate blue and orange first; leave the green one for last
-boss fight can be practiced by playing stage 20 to better prepare for attacks