How to ferry artillery units in Serbia 14?

[Mr Grumpy]

The bridge engineer unit is scheduled to arrive on the 17th,with a 60% chance to appear starting 06:00.

Unless Volcano Man worked some more editor magic into the scenario and it teleports into the map with a pontoon bridge next to it, a pontoon bridge can't be constructed before the 18th due to the 8 turn pontoon delay before bridging checks are made.

Indeed Ed can work magic !!   

A bridge engineer can arrive as a reinforcement and place a pontoon bridge instantly, I can't remember if this is a new tweak that Ed asked JT to code into a bridge engineer units but that is how it works in FWWC.

In 1914_0906_02: Obliged to Attack there is a Serbian bridgehead over the Sava at Jarak supplied only by some low supply hex's (to represent supplies brought over by boat) however on the 7th September @ 14.00 the Timok I bridging engineer arrives as a reinforcement on the southern bank and immediately places a pontoon bridge to the north bank, the AH player hence has only a specific number of turns to destroy the bridgehead before the Serb units can escape.