Tough question Sina. There are multiple things to consider in this that make this a sticky wicket. I'd like to see what Blodo or any other hard-core hessians think of this as well.
@Fletcher. We don't pirate...can't pirate...never will. Our ID (will) forbid it, and it's the doctrine of the SCRA to not harm civilians, as that's really who we're fighting for. Wouldn't do us any good to attack those we fight for. SCRA makes their own materiel anyway, we're bigger than you think.
I tend to agree with Drake that the Hessians would have a wholly vested interest, but then again, "the enemy of my enemy is my ally?" Maybe, maybe not. Lets look at a couple scenarios with just the two houses fighting and how it MIGHT affect Hessians and SCRA.
I'd like to see this war with a little more movement than the Bret-Kusari war, but that's not up to me either. anyway...
Scenario1: Liberty starts to gain the upper hand. The LN pushes through Texas, threw both Hudson and Bering, and are flying regular patrols into Hamburg around both Jumpgates. Rheinland, still not quite built up from the 80 years war, is reeling, and calls upon it's reserves in Dresden and Stuttgart to move to Hamburg and protect New Berlin (perhaps the Battleships move to new locations).
This gives rise to an advantage for the Hessians in both Dresden and Stuttgart. Not so important in Stuttgart, but for the Dresden mining operations, it's crucial. Vogtland is now a huge power in that region without the Altenburg (or whatever it is), and make their presence felt economically. Diamond trade money is now being funnelled into the Hessian syndicate instead of the Rheinland corporations, thus depriving the Rheinland government of capital needed to fund the war effort...downward spiral.
The SCRA, who are already on the Hessian side of the Corsair-RHA war, start to see the Hessian's rise, and the two push the Corsairs out of O41, splitting Cadiz from the main Corsair fleet in Gamma. With SCRA patrolling O5 and harrying Cadiz, the Hessians are then free to move on Gamma.
Bad things happen to Corsairs, Good things happen to Hessians. SCRA, if Cadiz falls, has one less enemy at their doorsteps.
Scenario2: Rheinland, with it's superior equipment, if not numbers, halts the libertonian advance in the Borderworlds, where gruelling trench warfare (or the Freelancer equivalent) takes place. While not being up to strength immediately, the Rheinland war production, with it's plethora of raw materials, kicks into high gear. Ships roll off the assembly lines, and with the GottKanzler ordering able-bodied men to the armed forces, bodies will be able to fill those ships.
Liberty is pushed out of the Borderworlds, and Texas sees battles outside of Houston. SCRA sees that the Gottkanzler has the upper hand, and worries that a powerful fascist government near their space, and a powerful military at that, would oppress the people. SCRA begins a campaign in Rheinland to encite the people to revolt. This could go two ways.
Those in practical slavery to the war effort see this as their chance (Unioners mostly, possibly bundshuh) and join the cause, helping massive amounts of people flock to the Unioner / SCRA side. A slowdown in the war machine means a standstill outside the gates of Texas.
OR, The people of Rheinland, in the euphoria of a winning conflict, repel the thoughts of the SCRA and redouble their efforts to not only win the Libertonian war, but fight the plagues at home. Unioners, LWB, Bundshuh, and RHA are all targetted by the now ready RM reservists, and all four groups, and the SCRA, are sent reeling back to the Omegas.
Now these two scenarios aren't the only outcomes of the war, by any means. These are but two possibilities.
The SCRA would be more concerned about Rheinland becoming a stronger power than Liberty I believe as RM has a stranglehold over the population, where Libertonians are granted a modicum of freedom. However, if Liberty started winning the war, SCRA could become embroiled in a war with Liberty to keep them out of their ally's area as well.
