Dmitri Gulov is a Russian arms dealer the FND catches while he waits to meet Bembé at the El Tigre Dormido Hotel. You need a key he holds to clear Paolo's debt, and he may warn you about Bembé.
In Balance the Books, Bembé sends Dani to the El Tigre Dormido Hotel to get a key from Dmitri. The FND are already there, Vasily is dead and Dmitri is being beaten.
Whether he lives is up to how the fight goes. Either way he leaves Yara and is not seen again. Since Vasily died instead of Dmitri, the gun meant for his brother ends up in Dani's hands.
Image: UbisoftBembé Álvarez
Bembé Álvarez is Yara's black market king, a fake priest running his business from a church in Segunda. Paolo de la Vega owes him money, so in Valle de Oro you end up doing jobs for him instead of settling the debt with a bullet.
Image: UbisoftPaolo de la Vega
Paolo de la Vega is one of the two leaders of Máximas Matanzas, the music-driven rebel group of Valle De Oro. He makes the beats while his girlfriend Talía raps, and his army past makes him the group's tactician.