@ Cam51
Lock On is a game based around the sky - so the detail is there.
If you go close to the ground (let's be honest here) it looks crap. Its like OFP but reversed.
In OFP, the detail is on the ground with buildings, trees, people etc. but in the air - it looks rubbish.
In Lock On the detail is on what's in the sky (clouds, aircraft etc.) and on the ground it looks rubbish.
@ Silent n Deadly
Although that sky pack is truely incredable, I don't think its what Cam51 is looking for. I think he want's clouds that aren't just pretty to look at but you can interact with (fly above them, use as cover, fly through them).
Anyway, let's face it, the flying in OFP isn't exactly amazing