Reagan's BR
Banned
He means that the fruits of the Country (accolades for Bungie's games) belong to the whole team, not a single individual on the team.
The tone of the article seems to indicate that Marty is withdrawn from the rest of team whereas everyone else (sans one loud guy) is out in the same area.
To add to that, Joseph McCarthy was a leading anti-communist in the US during the 1950s. He was a Republican senator who is infamous for his internal investigations. He investigated all sorts of suspected communists in the US. Ultimately he was censured from the Senate. His methods were questioned by the Democrats as well as some of the Republicans and he ended up stepping on the wrong toes which sealed his condemnation.
This is where the term McCarthyism comes from.
I thoroughly enjoy U.S. History and politics.