Once the Laser Destroyer has been stripped out, as well as its capacitors and batteries, there is just about enough space for a Demolisher Cannon and ammunition to be installed, although only around eighteen Demolisher Shells can be carried at once, a pitiful amount in a battlefield situation. They can help infantry advance by destroying intervening terrain features while also giving them rapid support if they come across something they can't handle. Originally created to reuse a spare Destroyer chassis, the Thunderer soon came to be used as a close range infantry support vehicle. It was such a successful conversion that some Adeptus Mechanicus even claiming to have evidence for its inclusion in the canon of STC design. A common conversion is to replace the damaged Laser Destroyer with a Demolisher cannon, to fill the role of a Leman Russ Demolisher. When the advanced technology of the Destroyer Tank Hunter's main weapon malfunctions, or is damaged in battle, the Adeptus Mechanicus often re-gun the the chassis with a different weapon. 3 Regiments known to contain Thunderers.