From the developers:

Hi Gents,

A lot of things have been fixed, reworked or added for the next 2.5.x coming update

- Glass textures
- roughmet textures are not used anymore
- Multiplayer code revamped
- weapons adjustments

plus

- FFB and general input issues will be ckecked in detail to fix the issues

and a lot more ...

We still need to run a series of test to check everything.

Thanks for your patience.

Like the sound of multi-crew. Could be useful for AFAC.