Dev Build problem opt out of dev build in steam, although if someone does join with dev build it will mess server up at the moment.
http://feedback.arma3.com/view.php?id=4110

Yeah that's why i set as it as a feature not major but would be nice to see a animation for it or even a sound effect

Just to add at the moment don't try and join when using dev build as you will mess everyone's game up by turning them into birds

servers need to add bad version command.

Its not a hack its a bug in the dev build.

Tested issue seems to have been fixed.

Same I have to rejoin the server to be able to click on a playable character.

Im having the same with a Xfx 7770 Black edition and phenom II 965 BE, helicopter showcase on mid-high 1080p only 29 fps using only 20-30% usage, also changing settings from low to ultra hardly makes a difference for me. still running better then arma 2 though which is good.

same
Win 7 64bit
XFX 7770 Black editon 1gb
Phenom II 965 3.4ghz
8gb 1600mhz

Helicopter show case even less for me 20-29% usage
at 1080p high in quality
rendering AA off And Postpone effects off
29fps max

Start of scuba mission i can run much better 30-50 fps but still only 60% usage