I've raised two beagles in my life and never hunted either one with another dog. The first one used to trail me as a pup (I thought it was fun) then when we'd go hunting he always wanted to walk behind me. One time I piced up a long branch about 12 feet long and carried it over my shoulder. Every time he got behind me, that branch managed to whap him. He didn't know why but he figured out that being behind me wasn't fun and never did it again.
Like beastmaster said, once he jumps his first bunny, he'll get the urge to trail. Likely he'll loose the rabbit in about 50 yards when they usually take a big 90 degree leap to left or right. My second dog had real trouble figuring out that they don't just run in a straight line but once he did, we started putting bunnys in the freezer pretty regular.
I honestly am of the opinion that a dog that learns to hunt alone is a better hunter than one who hunts in a pack. Or at least, becomes real good sooner. A pup in a pack is often just along for the ride and barks his fool head off just because the others are doing it. A pup who has nobody to rely on but himself will need to think and figure things out on his own. If he has the natural drive that most beagles do, he just flat won't quit.
I've never seen a beagle worth a darn that you could call off of a track. You usually have to get in front of them and physically pick them up or leash them and then you'll still have your hands full as they try to go back to the trail.
Dang, I sure do miss my beagle...