Walkthrough tips, Campaign discussion [Heroes 5: Hammers of Fate].

Guys!!! Help me!!! Who in the 3rd campaign, playing as the Warlock, completed the 3rd mission and collected all the dragon armor? I can't find the dragon scale shield:(
HELP!!!

All items are located behind animated creatures. There are 2 creatures each: from the Fortress and the Dungeon, but a small problem may occur if the enemy hero took the artifacts.