Code Smell: Unnecessary use of global

[4LT]

https://github.com/JosiahJack/Keep/blob/fcdd969dd51204a8efce45a1e51bd2876fdfe04a/keepsrc/projectiles_launch.qc#L1816C8-L1816C8

This seems to be all over the place. newmis is never declared, so it must be declared as a global; however, it gets returned from the function, so there's no point in overwriting a global instead of using a local variable.

[JosiahJack]

It's temporarily this way until I can confirm I've quashed all the places where a parent function assumes that newmis contains the just launched projectile. An unfortunate holdover from ancient times but definitely a potential for issues.