"Engineer" APC?

[PatG]

I have been reading up on the 79th Armoured Division funnies and in several places it mentions that the AVRE were designed to carry demolition teams under armour that could exit through doors in the side of the Churchills to manually place charges.

I hacked up the British OOB to create the teams and add them to the AVRE troop unit. They work a treat, beetling around lobbing satchel charges at the bad guys but...when mounted up on the AVREs the seem to be like any other infantry on tanks - hanging on the outside. One solution would be to change the Churchills class to Tracked APC but that would lose its obstacle clearing capability. There doesn't seem to be an Engineer APC class.

Outside of the scenario editor, is there a way for an engineering vehicle to carry troops as passengers?

Thanks.