Get the pimple off its back pretty quick. Soak the thing in icewater for 4 or 5 days and change the water out daily. When you can open the lid on the cooler and the smell don't knock you over, you can butcher. Heck, the meat is good, like pork, just gotta get that musk out. There's NO fat in it, so cooking methods like crock pots that won't toughen the meat are recommended. Makes good jerky, too, and tamale meat. the back straps are just like totally lean pork chops. Biologists/taxonomist/mammologists still debate the family these little things are in, but I say if it looks like pork, tastes like pork, it probably is pork.
The Biologists seem not to think so, though.
As far as hunting 'em, only place I've hunted is out in the west Texas Desert. They're common around here, coastal bend of Texas, just south of where I'm at, but I've not had the opportunity to hunt 'em in brush. Note the prickley pear cactus around where you're hunting. You'll probably notice a lot of little javelina size bites out of the pads and pears. They LOVE prickley pear and feed on it. Out in west Texas, I spot and stalked 'em. They run in the brushy draws. You can find a good draw with cover and set up on the edge of it with shooting sticks. Or, you can walk the ridges and spot 'em, see which way they're moving, and try to get in position for an ambush. I've seen 'em in the open desert, climbing cliffs, they're not real partticular about staying hidden like deer. But, best spots are the brushy draws never-the-less. That's where I killed this one.
Oh, another thing, shoot directly for the shoulder, not behind it. All the vitals are behind the shoulder, much like a pig. They don't have much for lungs and the diaphram starts just under the shoulder. That's proabably why they can't run too far without fatiguing. There's not that much meat to worry about on the shoulder, so just break it, no problem.