A comedy-based mod for C&C Generals: Zero Hour, the C&C Crazy Mod adds downright absurd and hilarious units you'd never see in any other mod.
The replacement for the Tank General's Troop Crawler, the Armor Crawler comes with four Battlemaster tanks, explaining the astronomical cost of $3400 it takes to build one of these. But, since Battlemasters cost $800 each, you are only paying $200 extra for the Armor Crawler.
When attacking, it sends out the Battlemasters towards the target, and when the target is destroyed, the tanks return inside the Armor Crawler to recover any damage taken. The Armor Crawler can crush smaller enemy tanks beneath it, and cannot be crushed by Overlords.