Here we're continuously tracking COD Vanguard, Warzone/2.0, Modern Warfare 1/2, & Black Ops Cold War issues & bugs and their current status.
While Modern Warfare 2 was being downloaded onto your system, your internet connection may have suffered from some issues, such as an unstable download speed or packet loss, or the connection may have temporarily disconnected during the download process. Due to these internet connection problems, so...
at least three squads must remain in a match for a disconnected player to rejoin. Matches can be canceled during the pre-lobby once the player count drops below 13 squads.