MasterChiefAlpha joined ROBLOX on March 19th 2010 as a normal user, way before he signed up to work with the ROBLOX Staff as a forum moderator, MCA often posted stickies about certain stuff. In around 2013, He made a thread in ATR saying that he is leaving ROBLOX and the ROBLOX Staff for other things.
Joining ROBLOX Staff
In Late 2012 or so, MasterChiefAlpha joined the ROBLOX Staff as a Forum Moderator. ROBLOX accepted his application and let him in. He made "Best Mod" Lists in both RT and OT and gained much fame for possibly being a moderator who actually cares about the players.
Quitting ROBLOX Staff and the game itself
In Early or Mid 2013, when MasterChiefAlpha posted a sticky in All Things ROBLOX saying that he will quit people mourned and begged him to stay.
Respect in OT
Respect in OT for MCA was mixed, as some hated him and some liked him, like above, some said he actually cared about the players, while others most likely hated him because he was a moderator