Fortress-City Defenders: the dig-in and counter-charge formation (AoS 4th Ed)

It rewards a defensive, fortified posture — commonly by letting units dig in, reducing damage taken early or in your own territory, and/or punishing enemies that charge your line (for example with free defensive reactions). The idea is to make your battleline a wall the enemy breaks on. Specific effects vary by iteration; confirm against the current battletome/faction pack.

Players who want to play a patient, attritional game — holding key objectives, weathering the first assault, and counter-punching. It suits infantry-and-gun lists and missions where controlling your own half of the board is decisive.

• Freeguild Steelhelms — shield infantry that form the fortified line.
• Freeguild Fusiliers — guns that thrive shooting from a dug-in position, including into chargers.
• Ironweld Great Cannon / Cogfort — the 'gatehouse and towers' of your mobile fortress.
• Freeguild Marshal / Tahlia Vedra — leaders to hold the line and buff the defence.

Pick it when you expect to be charged and want to make that a bad idea for your opponent, on hold-your-ground missions, or into aggressive melee armies. It's less ideal when the mission forces you to leave your fortress and chase distant objectives.