My units keep getting disrupted

[Ricky B]

Suggestions, where possible:

Only move a single battalion per hex adjacent - higher stacking=higher losses and chance of disruption. But if you can move up in 3 adjacent hexes, you have a better chance of not having all units disrupt.
Keep a couple of units 1 hex away to move up and assault.
If unable to move and assault due to movement costs, then you have to push more units up next to the enemy and then hope for rallies if everything disrupts.
Attack around the German MGs and Artillery. You don't have to attack head on, there is plenty of open space/flanks or parts of the line without having to attack right next to the MGs.

And remember, this is WW1 and even early on the defenders could cause heavy losses to the attacker, and stop attacks.

Rick