Adding Mk-4 heavy Male with the long 75

There are some suggestions with adding ww1 tanks but just want to add. With the addition of Char 2 heavies I believe it would be possible to add the Mk-4 males in rank 1-2 for Britain and maybe the Mk-1 as prem for rank 1 and maybe also adding the FT-17 both with the angled plate and rounded cast one