Right... I wrote something up, and then realised that my Operation Icestorm would be showing up soon - so I decided to hang on and see what the 3E rules looked like before posting.
Now I've got O:I, and I've read the rules. (Also, pored over the models, rolled the faction dice to "test" them, and generally behaved with the contents like a small child in a sweetshop.

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The rules are very clearly explained in good English, and the rules are not in a separate section to the missions like many other rulebooks are. Rather, each mission scenario introduces all the rules you will need to play it, with each successive scenario building on the one(s) before.
Even so, the game is clearly very stripped-down, with a lot of detail removed.
An example is close combat, where characters just make a melee attack in the same way as a shooting attack, but only when in base-to-base and using their CC score. There is nothing more, and even the model profiles for the Father Knight have had the close combat weapons removed for simplicity.
Other examples include a lack of orders choices (no coordinated orders, cautious moves, jumps, climbing, going prone, etc), no explanation of long and short orders, no special ammo, no mines, no flamers... And whilst I know it's quick-start, these are all fairly basic game rules that do apply to the models in the box.
This is not really a complaint as such, but it does remove a lot of options that I feel are important basics, and which people often overlook when learning/are being taught (and then they wonder why they can't beat whatever the perceived über-combo of the day is...).
So. Long ramble short: shall I wait for the full third edition release to write a proper and relevant (i.e. current) review, or do I finish up and post the review based on second edition? I'll say now that I'm not really too keen on doing both though!