Talk:Challenge/@comment-25370154-20140912104407

These mission can now be completed using TDM too.

• The most basic mission! Sortie 6 times in 48 hours.

• Time for big rewards! Sortie a further 3 times in 12 hours

•  Sortie a total of 10 times in 12 hours

Source: Ace Combat - Offical Page - on Facebook.