The following is how a typical single envelopment would work:
4 guys (a Fire Team) kit up ( say 2 Sabers, 1 Dagger 1 BroadSword) and work their way to an objective (flag) staying loosely together (like a staggered column), doing the fire and maneuver thing also known as Bounding OverWatch (2 guys move a short distance while the other 2 cover their movement... like leap frog).

 Upon reaching the flag area they break into 2 elements. 1 supporting and 1 assaulting. The supporting element keeps the enemy at the flag busy by throwing down suppressing fire while the maneuvering element moves to flank the flag. Once in position both elements start working their way in toward the flag alternating the support / assault roles. Upon reaching the flag, 2 guys stay on the flag while the other 2 take defensive overwatch positions. That's it in a nutshell.

This whole movement has to happen really fast and everyone on the team has to know whats going to happen and what to do if it doesn't. It's a simple concept but the execution is not so simple. It takes team coordination, communication and most of all... "flexibility". To attain all of that takes training and repetition.

We have had some structured training on these maneuvers, but for those of you who weren't at the training, remember to just apply the basics :

1. Stay/move with your team,
2. Cover your team.
3. Team leaders communicate with your team.