The word "gametype" refers to the specific category or style of a game. It describes the rules, objectives, and overall structure of a game. Full definition
Obliteration in Battlefield 4 was okay, but most of the new gametypes in Battlefield have been taken directly from other games, and in many cases, done worse. (cogconnected.com)
The first of these modes, known as «Assault», is a new incarnation of a classic gametype where red and blue teams take turns in attacking or defending a statue from the opposing team. (elder-geek.com)
While there are added customization options, there is still a pretty deep list of multiplayer gametypes for players to explore. (theflickcast.com)