Source

Purchase Boost and Swap Pack from the Shop for 200 Credits - Grants 2 per purchase

Granted periodically for progressing Battle Passes (Paid and Free)

Log into Halo Infinite Multiplayer anytime between Jan. 19 and Feb. 16, 2022 - Grants 5

Log into Halo Infinite Multiplayer anytime between May 3 and Aug. 9, 2022 - Grants 10

Win a giveaway for the 3 Challenge Swaps and 3 XP Boosts in the official Halo Discord server - Grants 3

USA

Monster Energy Double XP Promotion - No Longer Available

Kellogg's Double XP Promotion - No Longer Available

Rockstar Energy Drink Promotion - No Longer Available

Hot Pockets Promotion - No Longer Available

Kroger Kellogg's Promotion 2021 - No Longer Available

Target Halo Promotion - No Longer Available

Trolli Promotion - No Longer Available

Doritos Rockstar Promotion - U.S. - No Longer Available

Canada

Monster Energy Promotion - Canada - No Longer Available

Pringles' Potato Chips Promotion - Canada - No Longer Available

Rockstar Energy Drink Promotion - No Longer Available

UK

Lucozade Halo Promotion - UK - No Longer Available

EMEA

Monster Energy Promotion - EMEA - No Longer Available

Worldwide

Xbox Game Pass Ultimate Perks - Grants 4