Tired of seeing the silly default Imperial helmets? Imperials look closer to the Caesar's Legion from New Vegas than anything from Elder Scrolls. A simple change of generated Imperial Soldier NPCs to use heavy armor more often, completely ignoring the default helmets and either giving you helmet-less soldiers or the much more impressive Full Face Variant that for some bizarre reason isn't used much if at all in the game besides ONLY three odd locations and zero NPC's use it. Unique soldiers are completely untouched.

Simple little ESP, zero performance impact, completely compatible with any and all texture mods etc.

Any mod that alters the "ImperialSoldierArmor" leveled list will most likely conflict.

Hope this tiny personal fix is to your liking.

Recommended 

Sleeved Imperials: is a fantastic little mod that makes the Empire look a little more equipped for fighting in a frozen tundra and mountains of Skyrim
Mod Organizer: This will save you hours of reinstalling Skyrim and your crazy amount of mods when you break something. Use it.

Notes
Feel free to suggest changes/ideas in the comments or PM me.