My pitch for a Weapon X film
Weapon X is set in the Vietnam War era. After a round of service in Nam where his mutant abilities grabbed the attention of his superiors, James "Logan" Howllet comes back to the U.S. and starts working as an assassin for the government. Although born in Canada in the 1890's, Logan has forged american documents to cover the discrepancy between his real age and his appearance.
The movie quickly skims over a few of his missions, where his healing factor and completly concealed and undetectable weapons give him great advantage. The major antagonist is Erik Lehnsherr, aka Magneto, a terrorist advocating for the rights of mutants, people born with superhuman abilities. Magneto is considered a threat and Logan is sent to assassinate him. Through the movie he meets Xavier and the first class of X-Men (Jean Grey, Hank Mccoy, Warren Worthington III, Robert Drake and Scott Summers), and Xavier, Hank Mccoy nad Jean Grey hint on Logan being a mutant himself, but do not go deep into the subject.
The assassination attempt fails as Logan is surprised by Victor Creed, aka Sabretooth, who, like Logan, used to work as an assassin for the government. The two feral mutants fight claw to claw and Magneto tells Logan about his true nature and how is a traitor to the mutant race.
Beat and ashamed, Logan is brought back to HQ and told about the Weapon X program and how it enhanced Sabretooth's body. After being put through a series of procedures to cover his skeleton in the rare Adamantium alloy, Logan wakes up confused and with his memory gone. The combination of Logan's agression, confused, and newly covered-in-adamantium claws results in him escaping the facility and wondering through the woods by himself, hunting for food for days, before being contacted by Xavier via Cerebro, who invites him to join the X-Men.
The points of this pitch are:
to introduce another actor for the role of Wolverine
to establish that mutants have been present in the MCU long before other superpowered people started popping up
to use the first class of x-men as mentor figures and martyrs in the main mcu continuity