Carlos Oliveira/gameplay

Gameplay
Carlos is a playable character in both the main game in a small part and in The Mercenaries - Operation: Mad Jackal minigame, along with Nicholai and Mikhail. Carlos is armed with his trademark M4 Carbine and an STI Eagle 6.0. He has numerous recovery items but has only moderately powerful weapons. As Carlos, the player is more likely to die due to running out of time; it takes more time to kill a single monster with either the carbine or the handgun than with another, more powerful weapon. However, in Resident Evil: Umbrella Chronicles, he uses an MP5-A5.

During the mercenaries game, he is ranked at the medium difficulty. He carries an M4A1 Carbine, an STI Eagle 6.0, 90 Handgun Bullets, and 3 Mixed Herbs (R+G+B)

Resident Evil: Operation Raccoon City
Carlos will be making an appearance in the Spec Ops downloadable campaign for Resident Evil: Operation Raccoon City. It is still unknown what role he will play in the campaign, but it is assumed he will aid the Spec Ops in their fight against Umbrella.

Resident Evil: The Deck Building Game


Carlos is a character card in the Resident Evil DBG, first appearing in the expansion set Alliance. He has 90 health. Carlos' Level 1 effect is similar to Ada Wong's, in that he can look at the top card of the Mansion Area before he plays his weapons to Explore. Carlos' Level 2 effect allows him take a card from his Discard Pile and place it in his hand if the damage he dealt to all Revealed Infected is equal to their health. This can only be done after Carlos explores, naturally.

These effects allow Carlos to specialize in the use of Machine Gun type weapons, specifically the two introduced in Alliance; the Russian Assault Rifle and the Signature Special. These weapons, alongside the Gatling Gun from the first set, have their Ammo requirement and Damage listed as "X". This means that they' are determined by the ammo the player has to play with them, and the amounts can be designated. With Carlos, the player can Reveal the top card of the Mansion before assigning ammo. For example, if an Infected with 30 Health is revealed the player can simply assign 30 ammo to one of those three weapons, guaranteeing the activation of Carlos' Level 2. This works well for players wishing to acquire a card they recently gained, but without additional Explores gaining a recently purchased weapon can prove fruitless.

Interestingly enough, Carlos' abilities work well with the abilities of the first Jill Valentine card (based on her RE3 appearance). Carlos' ability to look at the top card of the Mansion before attacking is a great setup for Jill to decide if its best to use a Flash Grenade (which kills Las Plagas Infected instantly; and if she has her Level 2 effect, allows her to Discard it instead of Trashing it after use). Carlos ability to retrieve a card from the Discard Pile makes it easier for Jill to constantly have a Flash Grenade on hand, but this works better with multiple Explores. This compatibility was most likely deliberate on the part of the game creators, as Jill cooperated with Carlos to escape Raccoon City during Resident Evil 3: Nemesis.