However, the main difference between these two games is that Battlefield has a much larger scope than Call of Duty in general. Call of Duty tends to be set in maps with defined borders ...

The scrapped Call of Duty Halo collaboration would've seen Halo maps appear in Call of Duty according to leaks.

Call of Duty: Advanced Warfare Weapons and Attachments ... and requires about 3-4 shots to kill a target at long range. ACOG Scope has more zooming in capabilities than a regular Red Dot Sight.

Black Ops 6 Season 2 has now added a feature which lets players either enable or disable crossplay in the Ranked Play mode.