clan stacking 

Clan stacking is a situation in online team gaming where one team consists of players that are part of one or multiple clans while the other team consist of random players(PuG). The players that are part of a clan will usually dominate the players that aren't because they can coordinate and communicate. Clan stacking if frowned upon because the majority of online players don't belong to a clan. Some games/servers prevent clan stacking by spreading the clan players out over the teams.

Our team is being dominated by a clan stacking team in BF4.

clan stacking by alter3483 April 4, 2016