Re: Mozambique-99 HERE! (Never used Mozambique until now)
You need to be very close for all 3 pellets to hit and that is the only way to 1-shot a full health opponent (and unlike other shotguns, you need to ADS with moz, since it narrows the spread a little), so yeah it's marginally better at <10 meters, but p2020 is just more versatile and also gives much more margin for error with a 20 shot mag.
I do agree that mozambique is definitely the 2nd best CQC sidearm. As long as you manage to find the jackpot called hammerpoint rounds...