Dear Scrubs,
You are Mark I. The very first prototype of the Sentinel mutant robot project. You were designed as a killing machine. When the government feared that mutant populations were getting out of hand, they created a super advance robot to hunt them down. Your mission in life, capture and kill all mutants regardless of being good or bad.
Since you a rather large robot, you have multiple abilities. First, once during the night you may send a PM to matty stating "Night X - Secure <User> inside of Hull>." That night you will completely enclose that user from any killing abilities.
You have another ability. Once a night you may send a PM to matty stating "Night X - Engage <User> in Combat. That night, you will engage the given user in combat that they will be unable to use their night ability.
You may only use one of these abilities once a Night.
You have one last ability. Since you are a Sentinel Robot, once every odd Night you may send a PM to matty stating "Night X - Destroy <User> with laser system." That night you will use your power intensive laser to instantly kill that user. However, if more than one user allied with the Sentinel Army attempts to kill in a single night all kills will fail. You can only do this on odd numbered nights.
The other Sentinels in the Sentinel Army are:
Mark III, YoshiKing
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You win if a member of the Sentinel Army is one of the last alive