You may have seen these group people a few times, either at dawn or at dusk over at your local field.
these are the people from the COBC (taken from here)
COBC is a military inspired work-out, not your average gym workout I supposed; for more information on COBC you can go to their official website here
I'm not part of COBC and I have never attended any of their training, but I have been running with them on weekends. A lot of the bootcampers started running and most of them will be doing their first half marathon/full marathon either in Borneo International Marathon or Bali International Marathon. They are clearly a very fun bunch of people.
Rather than going to the gym, do your workout (most times not knowing what to do, unless you hire a PT) and go home; you can actually join the COBC and actually work in teams and make new friends.
So yes, since they started running every weekend, I've been running/freeloading their weekly run.
Damansara Heights LSD
Desa Park City LSD
1 Vision Run
Maybe..I said maybe..One day I'll go and try one of their bootcamp session. :p