Try 30. All but instant teleport except on the largest maps. There should be obvious gains in choosing rail over trucked transport, and at 8 vs 15 I just don't see it.
What would be really fascinating with rail is if you made rail movement REALLY overpowered to make it teleportation between any cities on the map, but also made it subject to interception. For example partisan infantry in the middle of no where, except it also happens to be in the path of a long distance train. Instant ambush.
Same with aircraft, mainly fighters and level bombers. The allies bombed the blazes out of the French rail and bridge networks prior to D-Day and it had a significant impact on the German's ability to deploy their forces to crisis points. Considering the scale of PzC, where entire countries are depicted in a single map, this would not be unreasonable.
In Summary:
1. Connect every city (with maybe a few rare exceptions) on the map to the rail network.
2. Increase movement of trains.
3. Create situations where this incredibly powerful asset of rail movement is vulnerable. It can be intercepted by normal ground units,
but also fighters. I'm sure we've all read and seen gun camera footage about P-51 and P-47s strafing trains.
4.
Allow level bombers to destroy a city's rail network in addition to it's normal effects(cannot load or unload in X city), or to actually bomb hexes with rail roads on them. This might be a little tricky to display to the players where the damage to the rail network is, plus there would probably need to be a way to repair these destroyed railroad hexes.
http://www.usaaf.net/ww2/atlanticwall/awpg6.htm
http://en.wikipedia.org/wiki/Combined_Bomber_Offensive
This, plus deploy hexes instead of just 'deploy at any city' should substantially curb mass unit strategies, plus make rail transport more interesting and useful, but also give it some flaws. If you blindly fly your units across the board on trains, you'll suffer interceptions from crafty players. It also gives rise to the need for security forces in your rear areas instead of the usual PG way of doing things where the map behind your front line is just completely devoid of units.
Also, this, mainly to prevent traffic jams.
boredatwork wrote:Make loading and unloading from *any* railroad tile not ajacent to an enemy unit - many small towns not represented on map still had some rail facilities, and there are many pictures of panzers being loaded onto trains from simple earth and log ramps.