Hey Sargon!
Thank you for the nice words!
You can change the value by editing this file <Game folder>i\data\MMH55-Index.pak\GameMechanics\RefTables\WarMachines.xdb.
If you have no experience with .pak files before you can read about how to modify them here.
Find an item with id <ID>WAR_MACHINE_FIRST_AID_TENT</ID>
and change the <Shots> value from 3 to whatever you want!