Stopping Them In Their Tracks

"Push forward! Push forward!" The Rebel Mechanoids blared their signals to press their attack. There was no reason not to do so. Their enemies were only a minor fraction of their troops and yet for some reason, they were doing significantly better in damage control and defending their position while their sole artillery gun kept firing nonstop towards the church. 

Naturally, the rebel commanders were afraid even though they were hiding underground but it was precisely because they were underground, they were terrified that they could be buried underneath it. They had searched the underground premises and found no alternate exits other than the entrance from the church. Their only sole purpose for staying underground was to avoid the artillery attacks when their Mechanoids had reported too late about the enemies' objective.