YouTuber Fifakill shared a YouTube video showing how he earned 2.5 million XP from a single match in Call of Duty: Infinite Warfare multiplayer.
Fifakill was able to earn Gold camo for all 28 weapons during a single match, alongside completing other challenges, bringing his XP count to 638,733 XP. Because Double XP was active, the game doubled the total earned to 1,277,466 XP.
Infinity Ward recently introduced Double XP tokens to Rare Supply Drops. This allows players to chose which game to use the token on, and as expeced, Fifakill used a token for this match. His total XP went all the way up to 2,554,932. He leveled from level 1 to 52 from the single match.