MMH5.5 - Heroes of Might and Magic 5.5

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 WAR_MACHINE_FIRST_AID_TENT
and change the value from 3 to whatever you want!