- Yes. However, when you say "tiny" do you mean formations that are less than 1,000 Tons? If so, they're going suffer a terribly high number of breakthroughs...
The smallest one is below 100 - 99, with 33 PWL infantry.
Most others are 250, and 500 as of late...
636 was the one with 2 construction vehicles...
From wiki, emphasis mine:
7) HQ: The headquarters capacity of the component in tons. This is the total size of the formation (or formation hierarchy) that can be effectively controlled by a commander based in a unit with this component. To assign a commander to a formation, one of the units within that formation requires a headquarters component.
So you should not be able to assign an officer to such a formation, and if you can it is probably a bug(?) and at any rate should not confer any bonuses. That said, the ground units systems are known to have a fair amount of bugs remaining so it is not impossible for that to be the case.
So, a bug..?
You are correcting a mistake made by a misunderstanding of the rules so just design the new formations, delete the old ones and use SM to replace them with the new units .
Or design new slightly larger formations with the added command element, build new formations with just the command element and use the existing troops to reinforce these new units. I'd use SM its easier
Designing a slightly larger formation is not ideal, since they are tied to a troop transport component size...
I'll have to delete them and recreate them with Space Master...
Or, perhaps, keep them and throw them away in some combat.