Bridging in 2.1

[IronMikeGolf]

Some factors that ought to influence how long it takes to bridge are Readiness and Training levels. These would modify (i.e. increase) the national values for River Crossing, Stream Crossing, and Swim Prep Times.

If Readiness is partly a reflection of equipment status, then, possiby, a low enough Readiness precludes a unit from swimming (perforated swim barriers, leaky hull plugs, damaged trim vanes, combat lossed snorkels, etc)