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https://assetstore.unity.com/packages/audio/sound-fx/weapons/blasters-large-83128
This is the "Blasters Large" Asset
* 1600 unique blaster sound effects
* 6400 round robin blaster sound effects
* Size: 620 MB
Even though this is a sound effects asset you may find use of the included scripts to quickly create turrets and blasters. You can quickly configure rate of fire, bullet velocity, and use the included blaster bullet prefabs, muzzle and impact effects.The bullets and impacts are pooled to improve performance and the bullet impacts are performed using raycast. All sounds are provided as high quality 16 bit 44.1 kHz stereo and mono sounds.