Change some automatic weapons around

Ever since the introduction of the SMGs, many weapons have been made useless.
There needs to be something done to make those weapons useful once again, and I'm here suggesting it v:
@Pikmin_Hunter and I were discussing this a while ago, but never suggested it publicly until now.
The changes to the weapons involve the assault rifles and the submachine guns.
Of course, some of these changes are to make the SMGs more realistic to the game.... because a P90 with a 40 round magazine is quite disappointing.

M4A1: Currently, this weapon just disappoints. It is outclassed by all the SMGs, both in terms of damage and in terms of firerate. It's a shame, because this weapon is one of the most popular weapons in CoD games that have it, and yet here it's worthless.
Right now, it does 1.5 hearts per hit and has a firerate delay of 3 ticks.
My proposal is to keep the damage the same and increase the firerate to a delay of 2 ticks, the current speed of the Lamentation. This will make it more usable, but at the same time it will run out of ammo more quickly.
AK-47: This assault rifle isn't bad, but right now it's outclassed by all the SMGs, since they either do the same damage or more damage.
Currently, it does 2 hearts per hit and has a firerate delay of 3 ticks.
My proposal here is to buff the damage and keep the firerate. The damage should be buffed to either 2.5 or 3 hearts, making it able to kill in a minimum of 4-5 shots.
Lamentation: This assault rifle used to be special, because it and the minigun had the highest firerate in the game; a 2 tick delay. Now, though, all SMGs have this firerate. This renders the Lamentation useless unless it's being used at medium range, where its accuracy gives it the ability to kill a little faster than the SMGs.
Currently, it does 1.5 hearts per hit and has a firerate delay of 2 ticks.
I have two ideas for this weapon. One is to increase the firerate, and the other is to increase the damage.
1. Increase the firerate to a delay of 1 tick. This would give the Lamentation the absolute highest firerate in War, at around 1200 RPM. However, when the SMGs were first introduced, the P90 and the PP90M1 had this firerate. Because of their high damage, they killed too quickly, and were deemed OP by the community. However, this can be fixed by leaving or decreasing the damage.
The damage could either be left at 1.5 hearts, or decreased to 1 heart. It would take 10 hits minimum to kill with 1 heart damage, but because it fires so fast, killing time shouldn't be a problem. (of course, ammo will be an issue)
2. Increase the damage. The damage could be buffed to 2 or 2.5 hearts. This should allow it to compete with most SMGs while having extra accuracy that puts it slightly above the SMGs.

SMGs, in my opinion, should have damage dropoff; dealing more damage at close range. However, these changes that I make below to the SMGs are made under the assumption that damage dropoff won't be added any time soon.

MAC-10: For a weapon that's unlocked at level 9, it's above most weapons, even the AK-47 and the Lamentation. It could probably kill faster at close range than the FAMAS. I believe it needs a magazine size decrease, to 20 rounds per magazine. This makes it reload more often, so it would be pretty equal to the M4A1.
MP7: To be honest, this weapon seems pretty good. I could say a minor accuracy buff, both hip and aiming down sights, since it has a built-in foregrip. However, the weapon could either have a 20 round standard magazine or a 40 round extended magazine. Doesn't matter to me. But the damage is fine.
UMP-45: The only change I really think would be needed is a magazine change; from 30 to 25. This would make the weapon more unique, and it would make it more like a SMG.
P90: Increase the size of the magazine back to 50 rounds. It's not that hard, and it wouldn't make the weapon uber OP. In addition, a decrease of hip accuracy would be good, since it has such good aimed accuracy. It's supposed to have a 50 round magazine, anyways.
PP90M1: When the SMGs were released, Putty experimented with the PP90M1 and P90 by giving them that high firerate of 1 tick. I did like this, but unfortunately, many didn't.
I propose a change in magazine size to 54 rounds per magazine. Easy change, and it makes the weapon different from the P90. In addition, if it receives that high firing delay of 1 tick again, a damage decrease to either 1.5 or 1 heart (same as the Lamentation) would make it a nice weapon.

SMGs also need increased recoil when recoil returns, to keep them balanced.

Now, some of the other automatic weapons may be unbalanced. So here are some extra things to change it around -
M16: Increase the damage to 2 hearts, or decrease the delay between bursts. The M16 actually kills in 1 burst at close range in MW3, because of a buff. But since it's a starter gun here, it can't be too OP.
FAMAS: A minor decrease in the delay time between bursts should be fine. But the damage is good in my opinion.
Skull Crusher: No changes needed here. It's already powerful as it is.
Minigun: If all these ideas were to be added, the minigun might be a little useless. So a minor damage buff to 2 hearts per bullet would be good in my opinion.

If you have any improvements, leave them below. Otherwise, would be nice to see some votes on the poll. (limited poll options since you can only have so many options on a poll)

 

Really, all the SMGs are the same. Sure, they may have different magazine sizes, but they have similar accuracy values and the same firerate. That's why I suggested this - Putty wanted to make the SMGs unique with a high firerate, but the damage was too much. It could work if the damage was taken down like said here.