Talk:Focus/@comment-27204915-20151207151650/@comment-27197089-20151207200716

It will charge both of them. 50/50 if you get the kill with the focus weapon.

Otherwise it will give 50% to the frame only.

I know this for a fact because I farmed with Loki 2nd day (Loki using the Focus) and an Orthos Prime (no Focus) and Loki got plenty of Focus from kills with Orthos.