Tank I - 10x8
Tank II - 10x4
Tank III - 10x6

No idea if this is maybe a bug, Intentional or a mod conflict, Either way it's strange how the T1 tank has a massive Grid where the next 2 Tiers are worse off.
Any advice on this please?
It's likely someything my end but I've no idea on what that could be so all I can do is ask you.
Thanks in advance

With just Bob's Warfare and Bob's Vehicle Equipment mods, Tank 1's equipment grid is 10x2. My guess is that you have another mod enabled that is increasing the size of the grid, but just for Tank 1.

I see...Strange, Well thanks a bunch for confirming it's my game, I'll take a look to see what's up

If you can't work it out, upload a blank save game and I'll take a look.