The team invades Santa Prisca on 6/22, and their mission seems to be completed within one day. The day of their report to, and review by, Batman, is listed as 8/4. It seems unlikely almost 6 weeks would have elapsed between the two events.
The team is dispatched to the island on 6/22, supposedly for their first mission. According to the 3 preceding episodes, they formed the group on July 5, and by July 17 still had not seen any action.