Cash on delivery (COD) is a type of transaction where the recipient pays for a good at the time of delivery rather than using credit. The terms and accepted forms of payment vary according to the payment provisions of the purchase agreement.

During the original MW2, Soap is higher-ranking than Ghost; being his Captain, while Ghost is his Lieutenant and second-in-command. In MWII, Ghost keeps his rank of Lieutenant, however Soap is lower-rank, being a Sergeant. Ghost affectionately refers to Soap as Johnny,  especially after Alone .