Both inspired by Worst case scenario (the dutch Nazi zombie film that never was), well Herr Babel was I know for a fact.
1/48th, the main problem with the whole of that range, it's in the wrong bloody scale! (the only things that work are the scaleless armoured uber soldatts as they need to be big buggers!).
The Commander
Yes when we acquired the range (having been a fan for a few years) the scale was always going to be an issue for some. But of course, everyone games in different scales so there is never a right or wrong. Advantage of 1/48th, you can use your 28mm buildings and terrain no problem and I like painting them!! (which was the deciding factor as the models are great to paint)
As for this miniature and its inspiration its concept art was done in 2003/2004 as was the main projekt X cover art, you can see it here
http://scarabminiatures.com/forum/viewtopic.php?f=27&t=234 with the character so I think I am pretty safe in saying this was one of the first
I now have another power armour soldat with panzerschrek, pictures soon
Thanks