Complex sentence: Revolver Ocelot makes a non-canonical appearance in'during the "Deja vu" sequence, and canonically appears in' as one of Venom Snake's advisors within the Diamond Dogs mercenary group.
Split into simpler sentences: Revolver Ocelot makes a non-canonical appearance in'during the "Deja vu" sequence. The character, known simply as, canonically appears in' as one of Venom Snake's advisors within the Diamond Dogs mercenary group.