why tf2 technically has 5 stock shotguns - & why these two identical shotguns don't look the same

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trigger_hurt for their contributions in research
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FAQ:
Q: How did you make that? What editing software do you use?
A: I use Adobe Photoshop, Premiere Pro & After Effects. Photoshop for image editing and thumbnails. Premiere Pro for compositing and After Effects for motion graphics (the fancy animations).