So - only 40K - what a surprise
So - got all those already
The problem as I recall ( I haven't looked at 40K seriously for years ) was that each of those IG variants did not have the Plasma gun.
Tallarns had the sergeant with a plasma pistol, and I think a Plasma gun figure surfaced years later but may have been a 'rogue'.
I also recall that the Mordian Mortar became OOP early as the mould 'died' - and I notice they are not on this list.
What price my Pretorians now.