How to handle the issue of raiding in PBEMS? is the topic here. I'd like to hear about various House Rules for dealing with this, so please post.
The issue is, in short, that the South can flood the North with a lot of small, usually invisible bushwackers, partisans, Texas Rangers, etc. These cut rails so fast that the Union player has to dedicate about a division per state simply to repair the cuts, or else face the prospect of a raid-in-force for a target that the Union cannot then reinforce. The raiders are fast, fast, fast, and can survive off supplies from captured ports and so on. If they die, they're cheap to replace, or even come back for free.
So, many PBEM games want a House Rule to limit their ahistorical use.
For example:
1. Raids may not be single units. There must be two in a stack, or with a leader.
2. No single unit raids in the states north of MO-KY-WV-VA-MD-DE. In return, the US must permanently station 5 built miliia in different towns in each of IA-IL-IN-OH-PA.
I'm sure you have a way to deal with this, so please post your candidate solution.
PS - Of course, we hope Ageod will fix this in a future version, but please don't post here what they should do to fix it. I'm just looking for fixes that can be implemented with the current versions of the game.