Which of these systems do you prefer?
Why?

I prefer how BO4 handled it because normal guns were still useable, but Wonder Weapons remained special.

BO3's system was similiar, but the infinite damage on normal guns made the lesser Wonder Weapons redundant.

Look I love BO1, but high rounds consisting of:
1. Buy point gun
2. Have a WW in case of emergency
3. Use traps to kill, because normal guns don't do anything.
Is not very exciting.