What SYSTEM? There isn't one. It was removed on "cost" grounds.
What cost now? Military blokes being screwed around, people leaving in droves, recruiting down the crapper, it's a disgrace, not a SYSTEM.
When I joined, one of the "benefits" was free medical treatment for life in a Military hospital. Hmmm...
Does it "suck the big one" - no. There isn't anything to do the sucking.