Complex sentence: In May 2016, the team was approached by TheSpartacat, a member of eSports organization PBL Halo, and asked the team if they wanted the organization to run an ad for the game during a tournament stream.
Split into simpler sentences: In May 2016, the team was approached by fellow community member TheSpartacat. TheSpartacat was apart of an eSports organization known as PBL Halo and asked the team if they wanted the organization to run an ad for the game during a tournament stream.