I was fieldops and with my fast-artillery script i put a "firing-for-effect". exactly after that i changed class with spawn-script and did selfkill -> after that my charge was FULL!
do stickycharges for other classes you dont play ATM reload?
example:
i am fops -> i do artillery
i change to engi -> i build barrier and fool around a bit
i change to fops again -> whats the charge now? does is continue from where it stopped?