From Halopedia, the Halo wiki
For other uses of the term Armstrong, see here.
Chad Armstrong, more commonly known by his alias Shishka, is former employee of Bungie and 343 Industries. He, along with Stosh, was one of the first Forum Ninjas on Bungie.net. Shishka was a contract worker for Bungie and was well known for both his avatar and the fact that his appearance was strikingly similar to that of Lord British.
He is well known for his "Take No Prisoners, Show No Mercy" approach to moderating the forums, which has made him either highly looked upon, or hated with a passion. He worked on Halo: Reach as an Associate Designer. Chad Armstrong left Bungie Studios once again in August 2010 to work for 343 Industries. In 2012, Armstrong left 343 Industries, and in 2013 joined Crystal Dynamics as a designer. In 2017 he left Crystal Dynamics and joined Respawn Entertainment.
Chad Armstrong has been a Bungie Studios fan longer than most current have worked there, and before he became an employee had already met several of them at fan events such as LAN parties and Bungie Fanfest.
In August 2004, Shishka was hanging out on the halo.bungie.org IRC chatroom when Lorraine McLees signed in looking for help with Halo 2 screenshots and other Halo 2 promotional art materials. Shishka, who was about to move to Seattle anyway, offered to help out.
Shishka's first day at Bungie in 2004 was his second day living in Seattle, and lasted 36 hours, spilling over into the next day as well. Shishka was hooked and Bungie accepted him as one of their own.
Shishka's primary duty over the course of his two-year employment at Bungie was to keep Lorraine McLees sane by helping her out in any way possible. He created most of the Halo 2 swag and promotional material made for the game, as well as his Halo character appearing in many screenshots and the Halo 2 Attract Reel. He also served as a Forum Ninja, developing a reputation as a strict-but-fair moderator.
Near the beginning of 2007, Shishka resigned as a moderator and Lorraine-assistant when he moved to Texas (along with Max Hoberman and quite a few others from various game development companies) to help form a new company Certain Affinity.
"Shishka" is a Russian word, which means "cone" or "bump".