[2023] I can`t finished specialization machine gunner

I can't pass the 4th stage of this specialization, for reasons unknown to me or game errors. Because of the second task "Roaming Gunners". I walked alone in the open world and looked for them, I found the first one, it didn’t count for me, then the second one and the same result, then I killed them at control points, territory control, and also to intercept the supply. BUT nothing has changed as the setter stood at zero and remained. What`s promblem?