Is Liquid Ocelot a brother to Liquid Snake?
Solution 1:
No, Liquid Ocelot and Liquid Snake are not brothers.
Liquid Ocelot is Liquid Snake's consciousness in Revolver Ocelot's body. Revolver Ocelot "hypnotized" himself to be Liquid Snake.
Liquid Ocelot's consciousness is brothers with Solid Snake, so that's why the wiki has it listed that way.
However, Liquid Snake isn't a brother to Liquid Ocelot because Liquid Snake's consciousness is part of Liquid Ocelot - As mentioned before, Liquid Ocelot is the mind of Liquid Snake in the body of Revolver Ocelot.