Resident Evil 5/The Mercenaries

The Mercenaries is a score attack mode which is unlocked when you complete the game. To begin with, only two characters and one level will be available, but others can be unlocked by achieving sufficiently high scores.

Rankings
Your rank on any level is awarded based on the number of points you score. In a Duo (co-op) game, both players' combined scores are counted for the rank.

Depending on the rank awarded, you will receive a number of Exchange Points to spend on Bonus Features.

Chris (BSAA)
Unlocked automatically with The Mercenaries.

Chris (Safari)
Beat the Village stage with an A rank or higher.

Chris (S.T.A.R.S.)
Beat the Experimental Facility stage with an A rank or higher.

Sheva (BSAA)
Unlocked automatically with The Mercenaries.

Sheva (Clubbin')
Beat the Ancient Ruins stage with an A rank or higher.

Sheva (Tribal)
Beat the Missile Area stage with an A rank or higher.

Jill (BSAA)
Beat the Public Assembly stage with an A rank or higher.

Jill (Combat)
Beat the Ship Deck stage with an A rank or higher.

Wesker
Beat the Mines stage with an A rank or higher.

Wesker (S.T.A.R.S.)
Beat the Prison stage with an A rank or higher.

Stages
Each stage is unlocked by achieving a B rank or higher in the previous stage.

Public Assembly
The only map that is unlocked at the start.That's the location from the chapter 1-1. You fight there with Majini(town) the Executioner and Cephalo.

The Mines
Unlocked by beating Public Assembly at B rank.That's the mine from chapter 2-2 but now lighted up. There you encounter Majini(town),Reaper and Cephalo.

Village
Unlocked by beating the Mines at B rank. This is the village from chapter 3-1. There you are fighting with Wetlands Majini,Giant Majini,Bui Kichwa and flying plagas. Flash grenades are useful,because it kills Bui Kichwa and the flying plagas instantly.

Ancient Ruins
Unlocked by beating the Village at B rank.The location from chapter 4-2. You encounter there Majini(Wetland),Giant Majini,Cephalo,and the annoying Duvalia.

Experimental Facility
The first map that is not in the main game.You encounter Majini(base)using stun rod and rocket launcher and after a bit time only Lickers will spawn.

Missile Area
The Missle Area is unlocked by beating the Experimental Facility at B rank.It is the location from chapter 5-2. You encounter Majini(base),Gattling Gun Majini and the Cephalo.

Ship Deck
Unlocked by beating the Missile Area at B rank.It's the starting deck from chapter 6-1. You encounter there Majini(town),Chainsaw Majini(red and blue),Big Man Majini and Cephalo.

Prison
Unlocked by beating Ship Deck with B rank or higher.It doesn't appears in the main game. You encounter the Executioner Majini(also Red),Majini (Town) and Big Man Majini. Strategies:Shotguns,Proximity Bombs,Hand Grenades are useful. The new enemy is the Executioner Red that is very hard to kill.The best tactic is shooting his plaga weakpoint at his back with a powerfull weapon (Magnums,Shotguns,Snipers)