To unlock the DTIR 30-06 in Modern Warfare 3 and Warzone, you need to complete Sector 6 of the Season 6 Battle Pass. The season starts on September 18, 2024, and you can earn the weapon for free by progressing through the Battle Pass. You don't need to buy the Premium or BlackCell passes unless you want to speed up the process with tier skips. The DTIR 30-06 is a powerful long-range rifle with a slow fire rate and heavy damage.