Veteran in the Campaign is so BS and The Item like the Stealth Bomber is broken

I understand Veterans in Call of Duty is hard but I beat a lot of them on Veteran from Ghost to the original Modern Warfare 3 on the PS3. But this campaign, I don’t think the Weapons Free open wide area don’t fit with Veteran. The other Call of Duty games are liner so you know where the enemy is at and it very limited for the AI to flank. This campaign is literally next to unfair on Veterans. You won’t see the big problem until you get the brand new open area mission. It the same problem I have when I play Crushing on Uncharted 3 when I got to the Boat Graveyard area. It too big meaning, you can get shot at OFF SCREEN, enemies can see you and shoot at you from far away, and these open area don’t have a lot of places to hide behind. There are games that are hard like this that is open world like God of War. But the difference is they have arrow around Kratos to tell you there an enemy that is off screen. And then there the items, or the scoresteak. I have no idea why but the scoresteak is broken in campaign. I try to use the VTO Jet on the helicopter in the second open weapon mission. I click on the area where rhe helicopter at but for some reason, the jet bomb on me, killing me. And I didn’t click on the area where I’m at. And then I try to use a Stealth Bomber, but it didn’t hit the helicopter. So I reload last checkpoint and try again and found out for a split second I confirm the location it will hit, it show me I click a complete different area I click a few meters away from the helicopter. But I didn’t. It a bug. All of this make me so frustrating that I exit the game and turn my console off. I heard the story is so bad, but I didn’t know the gameplay will also be this bad too. I can’t enjoy the game when I have to constantly fight against the game. Veteran in Call to Duty does not fit with the open weapon areas, too many factors and the scoresteak is completely broken. Why does the bug and the open weapon part of campaign make this so frustrating to play?