User blog comment:Argorrath/Black Ops II "The Replacers" Vengeance Video released + Double XP this weekend/@comment-1854594-20130625183045/@comment-1187559-20130625200458

Here's a few other similarities I found:
 * All Call of Dutys were released on a day with "day" in it
 * All Call of Dutys can be shortened to "CoD" which is a type of fish
 * If you wake the last letter of every named CoD it spells "EWESESS"
 * If you take out sequels it spells "EWS"
 * If you take the first letter of the first two named Call of Dutys it spells MW
 * The order of the logo colour goes Steel, White, Steel, Silver, Black, Grey, White. SWSSBGW.
 * SWSS: Socialist Workers' Student Society. BGW: Blue Gene Watson.
 * The order of characters in the named sections of named Call of Dutys go 13, 10, 14, 8, 14, 9, 5.
 * 13+10+14+8+14+9+5= 73. 7-3=4. Call of Duty 4 was the first named Call of Duty.