UK sales Split

[src]

Digging through, 2 weeks of non reporting stops one from calculating the exact range. Weirdly, GFK doesn't even report the percentage drop, highly unusual.

Anyway, Christopher Ding (gameindustry.biz) did say Halo < BF 2042

BF 2042 - 39,000

[Week 11, 2002] HALO: COMBAT EVOLVED (MICROSOFT) -
[Week 46, 2004] HALO 2 (MICROSOFT) - 260,000 / NEW (85%)
[Week 39, 2007] HALO 3 (MICROSOFT) - 370,000 / NEW (90%)
[Week 09, 2009] HALO WARS (MICROSOFT) - 65,000 / NEW (90%)
[Week 39, 2009] HALO 3: ODST (MICROSOFT) - 212,000 / NEW (90%)
[Week 37, 2010] HALO: REACH (MICROSOFT) - 390,000 / NEW (90%)
[Week 46, 2011] HALO: COMBAT EVOLVED ANNIVERSARY -
[Week 45, 2012] HALO 4 (MICROSOFT) - Slightly over 332,000 / NEW (90%)
[Week 46, 2014] HALO: THE MASTER CHIEF COLLECTION (MICROSOFT) - Between 80,000 and 105,000 / NEW (95%)
[Week 44, 2015] HALO 5: GUARDIANS (MICROSOFT) - 150,000 / NEW
[Week 49, 2021] HALO INFINITE (MICROSOFT) - <39,000 / NEW

Near 80% decline. FH5 was reported to have a very similar 80%+ decline. The Gamepass effect.