Crossfire PingPong -- 2 Questions

[treadasaurusrex]

Indeed, that's certainly one way of interpreting a poorly-written & unrealistic rule. 

 IMHO, the crossfire should remain active and in-place for the duration of the game turn, and apply to any AT shot coming at the same target from the correct angle that does not pass through the hex adjacent to the initial setup shot. 

 Oh well . . . unfamiliarity with real anti-tank combat, leads to this kind of confused rule making. Here's to this being corrected & illustrated clearly early in the 5th edition PR rules.