Just do like he said but u also can inject when the game its starting(going to gear up ur soldier,u know before u choose the server) and more u can inject while u joining a game with 6 players or even 20+ players
PS:
BECAREFULL server powered by Leetchy idk what(whatever the servers powered by, a host or idk what 2, Leet) they have a programm that can take a screenshot from ur computer so try dont join this kind of servers with ESP on).For who doesnt know what i mean ESP on i ll explain better dont use ALL options instead Aimbot, Visible Check, Ignore Vehicles, No Spread, Lock Target, Zoom Check(if u want).DONT FORGET ONLY THIS OPTIONS FOR DO NOT BE DETECTED BY SS but if u start hacking like a crazy just write in the chat "Pls kick me im Haker if u didnt notice already ".