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i have some ideas for the game like 1.add sprint 2.coustomize charcters 3.new weapons 4.more levels 5.fix lag 6.rotate weapon while hiding so you can shoot enimes while hiding 7.firing range as others saied 8.making w-tasks a bit easier 9.bigger places 10.training range to get skills instead of buying it like training how to reload faster and to make a better accuracy or anything else plz add all of them if you can and sorry for long comment
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I suggest a place in the game where you can sample weapons. Also i suggest a place where you can buy armor and knives.