Really the HLR isn't that great. Dont use a single one in my nuln army. Repeater handgun it the way to go. Focus fire, HLR just makes my handgunners an early target for spells or war machines. Since I stopped using them people just seem to ignore my handgunners. Same can be said for engineers. Although I wouldn't recommend giving engineers any upgrades.
For games of less than 2500 my two core are halberdiers and spearman of 30, 2500 or larger I go for horde of 40. Detachments of swordsmen o 15 or 20. I also use shields.