I found out an easy way to make the Valkyrie weapons swappable, in this way you can either take out the weapons when they are damaged (so you can keep track of vehicle damage during the game) or change them if you change your mind about the weapons you want to use
- first of all you have to find somewhere some small magnets, I found them in and hobby store (you can also check e-bay...)
-then you cut some small holes in both the weapon support attached to the Valkyrie and the weapon
-now you have to glue one magnet both on the weapon and the support attached to the wing, make sure to glue them so that the magnet are attracted to each other!
Magnet on the wing
Magnet on the weapon
here they are!