As a team member (testing role atm, though I haven't really reprised that one yet...too busy not being at school.

I /will/ get onto it though, boys!), there's not a lot I can say, but I'll give my general opinion as a bare-bones kind of deal without getting too into specifics. Be advised though, I actually haven't properly touched Freespace in close to a year, with BP being the same. I'm just going off what I remember from my biased GTVA4EVA days and if something's changed or I've forgotten something, feel free to correct me.
- In what we've seen, the GTVA certainly slides towards a 'conventional warfare' approach to things, but rarely in history has a side defending its home territory bowed to brute force. I know this is simplified, but we're seeing this in the Middle East. Though the Iraqi regime prior to the invasion was toppled, there exists an insurgency that's going to take some time to be quelled, if at all. Bottom line being that people don't like being invaded, and they ****in' hate being occupied. As ya' do. The only successful solution to any conflict between two forces of the nature of the GTVA and the UEF, who harbour differing ideologies (some would say opposing), is a diplomatic one, whether both sides realise it or not. The alternative to this, is annihilation.
- The fact that this war is including an ever growing insurgency is a factor to be watched. The UEF has the means to play the dirty game back on the other side of the portal.
- From the tactical point of view, on a per engagement basis, the combat doctrines differ rather significantly, as we've seen from the released material on the BP site. The GTVA requires a bit of a tactical rethink regarding countering a force well versed in combined arms approach. This change must be effected from both sides of the GTVA's tactical pyramid, in terms of the aircraft employed and the tactics used.
There are a few ways to counter a combined arms approach used by the UEF, and the GTVA has a number of options, should it be willing to retool as an entire force to fight the UEF. The presence of the Shivans, however, present the GTVA's greatest flaw. The GTVA cannot retool itself in much the same way as the forces of both the UK and the US are currently doing to specialize more-so in the COIN operations of the modern day, because the primary objective of the GTVA's military arm is to defeat the Shivans.
As far as we've seen, fighting the Shivans and fighting the UEF aren't that compatible in terms of tactical doctrine, and it'll be interesting to see how the GTVA adapts to this. I've cooled down a bit with my loyal GTVA-ness since my early days of commenting on this issue and I'm far more willing to consider both sides in a more objective manner, but I still do enjoy discussing this, albeit now for different reasons. Typing this has really whet my appetite for BP, actually, and thus I'm going to reprise my testing role right about now.
Brb updating SVN.