Board Thread:General Discussion/@comment-17468962-20130906041556

Just because they start as allies does't mean they will have to end up as allies; especially if we take in account the possibilty that they were working behind the back of Big Boss at some point in the course of action of MGS5 (the torture scenes shown in the E3 Extended Cut video trailer for the game may sugest that idea).

Pros: Miller and Big Boss will eventually part ways; previous battles with Ocelot (charismatic rival).

Cons: Miller becomes crippled; Ocelot's admiration towards Big Boss. 