Blueprints for Grenade Launcher and other high tier weapons

[Murtor]

I'm currently roaming around the new Feybreak island in search of some nice blueprints (opening gold key chests for the most part). Unfortunately, I haven't found something good yet. I found a bit nice stuff like a legendary blueprint for an assault rifle on the Sakurajima island, also a green blueprint for a laser rifle and flamethrower, but nothing really good on Feybreak. Are there dungeons with blueprints inside or am I just unlucky? Or are the blueprints only on the two oil rigs?

[VulpesFulguralis]

I've got the new helm at purple rarity from a locked chest. But most of the good weapon bps Seems to be dungeon/oil rig exclusive.

[SoulReaperAxel]

u can also have achance of getting the bp from aplha bosses

[Murtor]

I heard about the chance for legendary blueprints from alpha bosses. And I'm not really thrilled. After over 300 hours of (casualy) playing this game, I only found 2 legendary blueprints (both from chests). But to be honest: I'm already happy with a rare or epic blueprint. That's why I'm more into roaming around and looking for chests/dungeons.