Result
I called a ceasefire, which POS accepted. I was curious about how the score was worked out and so inevitably asked the question:
“Scoring - You also get victory points from killing enemy units, based on its cost. So if we kill an expensive Tiger I get good points (I've never examined the exact amount but I'd roughly guess about 10 points), but if you kill a less-expensive T-34/85 you'd only get about 8 points. And cheaper tanks/armoured cars etc would score even less, and infantry lesser still. So approach battles with the intention of scoring for flag capture AND knocking off enemy tanks.”
There is a long article in the Battlefront forum that goes into much greater detail but at a practical level POS has summed it up: take flags and knockout/destroy expensive units, with one additional note – captured units count for double. Given that research, along with the fact that POS could reasonably have expected me to surrender [and so gain more victory points] and because I was curious as to how that would change the result I post both results:
The difference is because:
1) I would surrender the small flag that I had captured
2) I would surrender my remaining infantry forces, around 3 platoons, who as captured forces count as double their normal points