To me this is a game breaker... For some reason CTRL-F1 or whatnot will
trigger whatever is F1 and so on. It removes a ton of customability on the keybinding facet of the game. F1-F12 seem to be more hardcoded in the game, but that should not matter, CTRL-F1 is not F1 and can be clearly distinctive, not sure why they trigger what the non modifier is.

Is it because of things like A+S that this is removed? maybe spend some time and weed out the kinks and make it happen?

I like to command 63 other players in the server, in TS3, I have a g19 and would love to use my Gkeys to bind my chat channels, so I can talk to air, infantry, fireteams, etc etc via those G keys... As I have enough keybinds already for self use... using CTRL F1-F12 etc.. Would open up a new realm of management, and make commanding so much simpler and clunkyness free.

I would imagine it would also open up managing your squads as well a lot easier.