Looks like the Mk 5 .... I'm interested in doing the Crusader that's featured on the Imperial Armour Vol.2 front cover, that's what inspired me to do the Tempest & Land Raider .... and I think this might be the same one going by your choice of weapons ....
Will be interesting to watch the build on this one ....
Great start Armondikov
Btw, I hope you'll get back to your Thunderhawk, .. that was going well, then you stopped working on it ? ....
Jas