The Q&A I've drafted to send to MMP:
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TBs in Minefields
Background Rules Summary: TBs are defined in the rules relative to Woods hexes (B13.421). Units using such TBs are restricted by the "one-way direction rules" of One-Lane bridges (B6.431), and presumably this includes the B6.431 restrictions on permissible vehicle VCA changes while on a Woods TB. B13.421 says if multiple (non-partial) TBs exist within a hex, a unit can't enter by one TB and exit by another TB. The concept of TBs, however, is also used for minefields (B24.74). B28.42 says minefield attacks on vehicles happen only on entry and exit of that minefield hex: VCA changes do not trigger minefield attacks.
For each situation below, the question is: "Does the vehicle face a possible minefield attack as it leaves the hex?"
(a) A fully tracked AFV drives into an open ground minefield hex creating a partial TB as it does so. It survives the "entering a minefield" risk (B28.42), stops, re-starts in reverse, and backs out of the minefield along its TB.
(b) Same situation as (a) only, instead of stopping and reversing, the AFV remains non-stopped, changes its VCA, and drives (in forward) out of the hex along its own partial TB.
(c) A single (non-partial) TB counter exists across an open ground minefield hex. A fully tracked AFV drives along this TB into the hex, remains non-stopped, changes its VCA, and drives (in forward) back out of the hex through the same hexside that it entered by.
(d) Two non-partial TB counters exist across an open ground minefield hex. A fully tracked AFV drives along one TB into the hex, changes its VCA, and drives (in forward) out of the hex through a hexside covered by the other TB marker.
(e) A Truck does exactly the same as in (c).
(f) A Truck does exactly the same as in (d).
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Does this look like it covers all of the bases? I presume the answers are no, no, no, yes, no, yes.
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I tweaked the wording a little and sent the question to MMP.