If I spent all my time painting that I did redoing my army lists I'd have enough armies to fight both sides of the Battle of Bardia.
I really need to get The Battle of Bardia (Australian Army Campaigns Series Book 9). Too late to get it from Christmas :(
So I thought about it, and it makes more sense for the Engineer platoon to be on foot and the first ones on the field. They need to clear the wire with Bangalore torpedo's, clear lanes through the minefields, fill in the anti-tank ditch and tank traps, and close assault enemy fortifications with explosive charges.
I want 3 squads to give them enough staying power before the reserves arrive, but I can't afford a full 3rd squad. I gave them anti-tank grenades instead so at least someone on the field can try and put a satchel charge on the incoming Tiger I coming over the hill.
I made this platoon leader a veteran from the first world war, as this platoon may need to hold the line for several turns before the counter attack or reserves arrive.