The Alexander arms 0.50 Beowulf should be in Tarkov. The game already has Alexander Arms products in it, so why not include their most intimidating gun? It's basically the mightiest gun that can still take an AR-15 lower receiver. The round is based off the Desert eagle round, just a little bigger. This gun will fill the same niche as the Ash-12: being a high powered close range .50 cal weapon. Maybe it will be the personal weapon of some sort of boss? It should be rare. And mind you it shoots a MUCH SMALLER round than a .50 BMG. .50 beowulf was made to kill moose, deer, bear, and elk–not to stop humvee engines!
Source: https://www.reddit.com/r/EscapefromTarkov/comments/jhf3zi/50_beowulf_for_tarkov_change_my_mind/