SWP Lab: here you can see the different SWP Weapons from your state and who owns them, if no one owns them you can see what you need to do to get them. Carefully: if someone is in another state because of valiant war for example the SWP Weapon could get shown wrong free. To switch weapon you need to win a battle (also works on camps or tiles) but it not for sure drops on first hit, it can be needed a lot hits.