Concept: Imperial Light Infantry/Skirmishers

So I have given myself a quest to somehow replicate the army units in real life with the Grand Empire from Star Wars. This came about because of a conversation my friend and I had arguing about the Empire's military and how easily it is to overcome them (looking at you, AT walkers).

I have come up with the idea of some light infantry/skirmishers.
Light infantry (or skirmishers) are soldiers whose job was to provide a skirmishing screen ahead of the main body of infantry, harassing and delaying the enemy advance.

Due to my lack of knowledge of any modelling, I have just combined and matched different models whilst also making the helmet white. My next concept is for a motorised/mechanised infantry (if you want to get an idea beforehand, search up German motorised infantry).