this would be a long game and require lots of people but here we go...
one team would heavily outnumber the other. the bigger team would setup a camp with tents, campfires, and cookouts unaware of when the other team would be arriving
the small team would have to secure and extract a target OR kill all the guards
as i said it would be long, the extraction team could take however long they want
basically the big team relaxes while the small team tries to sneak in and take the package...classic
it would be fun and i want to try it sometime so lets go