Carla will be present as an ally AI during Chapter 2 of Chris' campaign. She will fight with her handgun and will not use any regular melee moves but will escape from being grabbed when enemies attack her.
Carla will be encountered as "Carla Spores" during the end of Chapter 4 of Ada's campaign.
Carla is a playable character in the extra modes in Resident Evil 6. She can be unlocked after unlocking all of the other characters and costumes. She is only playable in one costume. Carla shares the same melee attacks as Ada Wong, though she has a different taunt and voice commands.
Carla's loadout is widely considered to be one of the best in The Mercenaries. The Picador is an excellent handgun that can easily set up both coup de graces and counters. Being the most powerful handgun, it can also unload a respectable amount of damage when it needs to.
Her grenade launcher comes with all three types of rounds, allowing her to deal with most threats quickly and efficiently. Notably, her acid rounds can be used to quickly set up coup de graces on enemies that prove to be more troublesome to score significant time off of. While she excels in versatility, Carla is lacking in power, however. Her explosive rounds double as her best tool in boss killing and killing an enemy quickly to preserve the combo. Having only six of them, it can be difficult for her if she runs out of them.