Heheh, Fatty, Nash - ease down...

I am not trying to slaughter any of your holy cows! Just saying there is a lot of detail in the WW2O world!
Nash, railways I've seen - trains not yet. But I've seen trainstations!
For your questions:
- framerate not great but playable - around 20 in fights
- I've seen very little (to none) warping in close dogfights, sometimes when looking from a panzer our own 109s and Stukas warp around quite a bit... all in all not a prob (for me)
- invisible troops: yesterday a squaddie turned invisible for me (but only for me - enemy and friends saw him still

) - might be a mix of connection issue, object limit etc... Haven't yet been really bothered by it - AH has some major invis in big missions and of course invi paras - in WW2O is complicated by the fact that planes see planes first, tanks see tanks first... so when loads of players around tanks can go invi for planes and vice versa
- CTD, since I have it installed, twice!
The best news in AH I find that finally some FM issues gonna be ironed out (couldn't care less about trains in a unhistorical, mixed country, mixed planeset, Furball-MA

)- AH isn't perfect, WW2O far from it!
The state WW2O is in at the moment I regard as open beta - free trial on hold and I payed the box gladly to support to Rats.
AH was missing lots of things when it went pay for play and I spent the 30 bucks per month gladly also...