RPG plan

Act I:
MC is a cynical bastard much like Rick Blaine. Set-up the writer, set-up MC's father. During a store robbery he kills the robber.

He goes to a place where he is mistaken for his brother, a rebel hero, goes along with it(he discovers the more he deny the lie, the more people believe it). He gives a speech telling everyone to retreat.

A mole discovers that he is back, who passes the information to his boss. MC's house is blown up by a bomb which kills his father.

Act I ends when he is smuggled out of a coffin much like the belly of the whale.
Act II:

Introduces the lancer who is a cowardly, bookish person who doesn't like MC's more evil ways. He is a closeted homosexual who is secretly in love with someone.

Act II ends when the MC and his brother team up(small-climax here).
Act III:
Maybe a flash-forward to deceive the audience that the MC is dead, and MC's brother remain alive.
The act of a lot of important plot reveals is here.
The lancer's kisses his lover somewhere.
A lot of people die, things get worse, and MC's brother commits a heroic sacrifice. Lowest point.
Act IV:
MC takes up the mantle of his brother.(hidden twin switch here)
3-4 year time-skip where MC gathers his forces and trains himself for the big battle again. Lancer grows and becomes more courageous, but he still doesn't like MC's some evil deeds.
Act V:
MC tries to retake the capital city.

Final Battle with the final opponent. Resolution where everything ends.

Characters:
MC:
A cynical bastard much like Rick Blaine in the beginning who plays both sides. Owns a general store and takes care of his father. He makes a lot of quips, a lot of them nihilistic and cynical.

Antagonist:
Unflinchingly loyal military officer. His son fought in a war and committed suicide due to PTSD. He isn't on good relations with his mother and daughter. He is obedient to authority(need to apply obedience to authority psychological knowledge here), and treats his son as weak because his son committed suicide. He also gets shafted in the political struggles in the monarch a lot.