Back when Void first came out, I-Kore, the company behind it hit upon what I thought was an ingenious idea. The game would include 4 human factions to begin with (Koralon were also released at the beginning, but from the start they stood apart with none of the access to the basic troop types I'm talking about here). They would release various kinds of standard miniatures that were accessible to all players, no matter their faction of choice, and there would be specialist miniatures only accessible by certain factions, thereby allowing them to still have a unique identity.
The forces available to everyone were the Marines, Legionnaires, and Androsynths. The vehicles that were part of the initial release, the Korvus and Tiger APC were also generic in their availability. I thought this was a great idea, as I could buy the basic minis of these types, plus a character or two for whatever tickled my fancy, and be able to field any of the 4 armies at low cost. It also benefited the company, as players from all factions would be buying the same minis, helping them keep costs down in terms of sculpting, and helping them recoup funds to invest in new sculpts.
There was the further advantage that all factions had access to the same technology. Something that always bugged me about some games was the fact that there could be a large gap in the tech level of various factions. This may make some sense in a fantasy setting, and it is an easy way to have a difference in play style between factions, but I always thought that in a futuristic setting, where the free market was a factor, why couldn't my army buy those super laser cannons to replace the shotguns that keep me in theme?
|Homeworld Starter Army.|
Buy now, choose your faction later.
This politic would be lain aside as the game progressed, and more miniatures were made available for each faction, but I still think it was a good idea. Androsynths became the sole property of the Syntha. They must have repossessed all the units they sold to the other factions, either that or a virus over-wrote their programming, returning them to the Syntha fold. Legionnaires were only fielded by the Junkers, presumably as the other factions moral compass kicked in, stopping them from fielding convicts. The Marines remained the stock force of the Viridians, VASA, and even Syntha for a while, where they were phased out later. However, specific models for each force were released for VASA and Syntha which were clearly just the same mould reused with new helmets, but that's okay.
Bring this up to the present day, and there's absolutely nothing in the rules that stops you from fielding these generic forces as part of your army. Indeed, there's nothing in the rules that stops you now from adding Legionnaires to your Viridian force, for whatever fluff reason you can think of. It's a big wide universe out there, where there are many reasons why these troops are still fighting for the other side. I for one still quite fancy some VASA Androsynths.