Lord Commissar
"Its me versus a shred of their god!"
— LORD Commissar Bern, showing everyone that deeds are just as great a motivator as a laspistol to the head.

Lord Commissars are an upgrade and a step up to your typical red capped trigger happy motherfucker. Lord Commissars exemplify power and bravery, making them natural leaders with a reputation for turning the tide of battle, snatching victory from the jaws of defeat, they are usually promoted to this esteemed rank after displaying exemplary battlefield service. The battlefield heroics of a Lord-Commissar are often the stuff of legends to the average Guardsman. Like all Commissars they lead by example and they are always the first to step up to the firing line ready to repel an enemy assault.
A Lord Commissar appeared in Dawn of War II and was perhaps most recognized for barely (If at all) getting any line in the Imperial Guard campaign other then just standing behind Sergeant Merrick and pretending (And Failing) to look like he is in charge of keeping Merrick in check. This is likely because the campaign was written for the Space Marines and the voiceless "The Ancient" with the Guard being shoehorned in their plot if you pick them. Pointing this out is a Blamable offense, wait I just did poi-:*BLAM* . Despite his near pointlessness in the plot, he is one of the main hero units for the guard faction and he provides several neat buffs in multiplayer.
He is also noted from taking a meme and canonizing it in game. (For those who do not know, he is the one who literally said "Drive me closer! I want to hit them with my sword!)
Because of their 'eliteness', Lord Commissars are often grouped with the Militarum Tempestus where they can oversee and help provide firing support to the glory boys in blue. They act as a command unit and provide some decent leadership buffs. However due to the general lower model count for the Militarum Tempestus, it is ill-advised to actually Blam a model in the first place. Thus, Lord Commissars act more as a supplementary command unit to make them more survivable.
The fact that the Command-Vox Net provides excellent morale to most of the Scion army means that these guys' morale-boosting abilities are not really needed, and the fact that they cannot give orders means that they are a very inferior choice to a Tempestus Command Squad.
Officio Prefectus Commissar

A even bigger step up from your usual Commissar, the Officio Prefectus Commissar or otherwise known as the Commissariat are one of the big cheese of the red capped family. You see, Commissariat oversees the activities of the Commissar officer corps within the Astra Militarum. The Commissariat attaches Commissars to most Regiments of the Imperial Guard to inspire its men, boost morale, and if necessary take control when its commanders or men are demonstrating a lack of zeal or competency. The Commissariat also recruits potential Commissars from the Ecclesiarchy's Schola Progenium then trains them for their duties within the Guard.
The Imperial Navy also operates a corps of Commissars, known as the Fleet Commissariat. These officers perform the same function as their Imperial Guard counterparts.
Yes, you heard that right, these mofo's are the ones that order other Commissars around. Basically, they are THE COMMISSAR. You do not one to pull a prank on them as most of them likes to carry a fucking Plasma Pistol for clean Blamming.
Due to their importance, Officio Prefectus Commissars are only able to join the most elite armies in the Imperium, which means that only the Militarum Tempestus can have the privilege to have these guys around.
Unfortunately on tabletop, Officio Prefectus Commissars act similarly to a normal Commissar or Lord Commissar. You would wish GeeDubs would have given them some special rules that could let them order deep strikes for more Commissars would you? Unfortunately the only thing that separates these guys from the rest of their ilk is their looks and the fact that they carry a Plasma Pistol with a bionic arm. Disappointing? You can bet your ass.
| Forces of the Militarum Tempestus | ||||||||
|---|---|---|---|---|---|---|---|---|
| Command: | Tempestor Prime - Lord Commissar Commissar - Tempestus Command Squad | |||||||
| Troops: | Stormtrooper | |||||||
| Naval Security: | Voidsmen - Imperial Navy Breachers Gheistskull | |||||||
| Vehicles: | Taurox - Taurox Prime - CAT - Chimera | |||||||
| Flyers: | Valkyrie - Vendetta | |||||||
| Seacraft: | Ignis Purgatio-class Oceanic Battleship | |||||||
| Spacecraft: | Devourer Dropship | |||||||
| Allies: | Imperial Guard - Inquisition | |||||||