Milum is an experienced and skilled run blocker who excels at fitting and covering up defenders on angle-drive and down blocks with very good grip strength to clench and sustain once latched. He also locates the hip/ribs of defenders as the drive-man on double-teams to jolt and feed them over. Milum shows good timing and solid burst on climbs to line up backers and work inside-out on targets as a puller to secure lanes off of his backside. He runs into issues against spiking/slanting defenders across his face, where he will get caught leaning and be late to redirect and cut off penetration. He will also step under himself on the backside of outside zone cut-offs, leaving him a tick behind the target.

In pass protection, Milum has a stiff, jarring punch with tight hand placement to gain access to the frame of rushers, especially on play-action jump sets where he routinely ends the rep quickly near the line of scrimmage. Milum handles the bull rush well due to a quick, firm anchor, and he shows good processing skills to sort and handle lines, games, and stunts. On true dropback reps, he does a nice job of mixing up his pass sets and strikes to bait and disrupt the timing of rushers, but his upright playing style leaves his balance shaky against adept counter moves, causing him to either get caught flat-footed or straight-legged, leaving him tardy to redirect.

Overall, Milum is an experienced, skilled run blocker with good play strength and powerful hands to displace and sustain blocks. He excels in pass protection on jump sets with a stout anchor to end reps quickly once latched. His upright playing style, sawed-off build, and mediocre lateral quickness lead to getting caught flat-footed and overextended when being set up by rushers capping his ceiling on true drop-back passes against high-end edge-rushers.