Playbooks

Mtn HB Base is a base run play out of Shotgun Wing Slot Wk with 12 personnel, built around a mountain motion man crossing the backfield pre-snap before the snap to shift defensive alignment. The offensive line shows a standard run blocking scheme up front with double team potential at the point of attack, while the wing TE and slot alignment give extra gap support on the strong side. This is a pure run play with a dive concept, and the primary read is the play side gap: the ball carrier keys the down blocks up front and reads inside first before bouncing outside if the alley is clogged.
Watch linebacker depth before the snap, if they are sitting shallow and square to the line they are keying run fast and will flow hard to the mountain motion. Check safety alignment, a single high safety with both corners playing off suggests base run support with less risk of a hidden extra defender in the box. Post snap, key the play side defensive end and linebacker, if they crash down hard on the dive fake the cutback lane opens for the bounce. This run struggles against heavy blitz packages and nano blitzes that stack extra defenders at the line before the snap, since it removes the numbers advantage up front. Zone defenses with linebackers reading gap to gap without overcommitting to motion will shut this down quicker than man coverage teams that get distracted by the wing motion.
Use the mountain motion pre-snap to bait linebackers into flowing early and expose run fits before the snap.
This play hits best on early downs like first and second and ten when defenses are still base personnel and not selling out to stop the run.
If the defense shows a heavy box with safeties crashing down, check the middle read and be ready to cut it back against overpursuit.
Pair this with RPO Peek Post or RPO Glance Post from the same set so the defense has to respect both run and pass out of identical formation and motion look.
Mix in Mtn Read Option or Mtn Buck Sweep on the next snap so linebackers cannot key the dive action off the same motion every time.