I can't speak to the hogs as we are fortunate so far. In general, I really think having vertical cover in a field increases shooting hour use for both does and bucks. Years ago, when we were planting Eagle soybeans for summer nutrition, I would add a light mix of corn at a 7:1 ratio by weight. The corn was not planted for food, but it did produce good cobs. There was no added N and the beans from the previous years produced enough N to support the beans. The beans were indeterminate and stayed green and attractive through our archery season. The corn was to add vertical cover.
A number of years later, we quit planting soybeans. Instead, we planted a mix of sunn hemp and buckwheat for summer. The sunn hemp grew 6 to 8 feet tall. I then took a bushhog and mowed wide strips through it for the fall plant. I left enough for good vertical cover in the field and strategically placed the strips so we could see down them from a blind. The fall plant was brassica, WR, and CC. I got better daytime use with this verses a flat field with the same mix.
As for milo. I've used it, but it produces nothing for deer for the summer. That may not be one of your objectives. I like to mix it with a legume. In my location Crimson Clover is a good annual clover companion. Depending on location you may want a different annual clover. In my area CC acts acts as a reseeding annual and gives me good coverage the following spring until I put in my spring plant.
In general, it is a good idea to provide vertical cover in the plot. I'm not sure what technique will work best for your situation.