Just like Mercenaries Mode in previous titles, Revelations features Raid Mode, which has one to two players fight off different waves of enemies while trying to reach a goal.
Basic Gameplay Rules
After selecting a character and map, the player will be dropped into a location with the goal is to reach the BSAA emblem while fighting off enemies.
After completing the stage, players receives BP, EXP for leveling up, a rank and bonuses, if they finished the stage with the requirements of the bonus.
BP & Levels
As the player completes stages, gaining BP and EXP for leveling, they can purchase new weapons, ammo or upgrades.
The higher the level of the character, the higher the weapons damage and player defenses. When equipping weapons, players must have a level equal to or higher than the weapon level, otherwise that weapon canned be used.
Scoring
The stage is cleared when the player reaches the end and melee attacks the gold BSAA emblem. At the end of each round, players will be awarded a rank, bonuses, BP, EXP, and shown what items they have picked up.
The player's ranks and amount of BP and EXP earned is based on their performance in the following fields:
- Accuracy
- Enemies (Number of enemies killed)
- Damage (Amount of damage the player received)
- Clear Time
The follow bonuses can also be earned for extra BP:
| Perfect Shot Bonus | Get 100% accuracy (3DS Only) |
| Lower Level Bonus | Your level was lower than the recommended leve! |
| Genocide Bonus | You have defeated all enemies! |
| No Damage Bonus | You took no hits! |
| Trinity Bonus | You have earned all bonuses! |
Unlockables
When you start Raid Mode you have limited stages and characters to choose from. The following is a list of unlockables and how to obtain them.
See the following sections for the characters and their costumes.
| Stages 1-7 | Beat Episodes 1-3 |
| Stages 8-12 | Beat Episodes 4-6 |
| Stages 13-17 | Beat Episodes 7-9 |
| Stages 18-20 | Beat Episodes 10-12 |
| Stage 21 | Beat the game |
| Trench Difficulty | Complete all Raid Mode stages on Chasm Difficulty |
| Abyss Difficulty | Complete all Raid Mode stages on Trench Difficulty |
| Raymond | Clear every stage on Chasm difficulty |
| Morgan | Find the real exit on stage 21 |
| Norman | Obtain all rare weapons |
| O'Brian | Clear every stage on Abyss difficulty |
| Green Color | Get a S rank on every level of Chasm difficulty |
| Blue Color | Get a S rank on every level of Trench difficulty |
| Pink Color | Get a S rank on every level of Abyss difficulty |
