Johnny Z, on 26 March 2015 - 05:42 PM, said:
Is it true Clan auto cannons take up less space, have longer range, weigh less and do more damage? I am not sure about the damage part. Someone said they do the same damage, but I find that hard to believe since all Clan weapons do more damage.
Clan ACs do the same damage (though UACs get the 'double tap' functionality even if the weapons can jam at partial damage).
The AC/2 fires twice for 1 damage per bullet. AC/5 fires 3 times for 1.67 (1 2/3rds) damage per shot. AC/10 fires 4 times for 2.5 damage per shot. AC/20 fires 5 times for 4 damage per shot. Each AC can also have its bullets accelerated with enhanced crit chances by sucking up more weight with Targeting Computers. Not nearly as good as IS quirks, but it does help and works with any Clan mech that can support the weight of 1 to 8 tons depending on which computer.
They are -- for the larger ACs, slightly lighter and fewer slots. However, any AC (or PPC) of any type placed into an arm automatically removes the lower arm actuator, locking horizontal movement (if on just one arm then reduces it to 10 degrees range).
Their ranges are somewhat better, but unless you enhance the speed of the rounds you won't hit anything.
By the cooldown time being exactly the same -- and MWO's method of "cooldown doesn't start until gun is finished", it takes longer for all Clan ACs to fire again than it would for unquirked IS ACs to do the same.
Range differences:
IS AC/2: 720 meters.
Clan AC/2: 900 meters.
Clan UAC/2: 810 meters.
Identical heat.
IS AC/5: 620 meters.
Clan AC/5: 720 meters.
Clan UAC/5: 630 meters.
Identical heat.
IS AC/10: 450 meters.
Clan AC/10: 540 meters.
Clan UAC/10: 540 meters.
Clan AC/10 has lower heat. (Actually Clan AC/UAC/LBX have canonical heat, Clan LBX/10 alt fire aka AC/10 generates less heat than normal IS AC/10s and Clan UAC/10s).
IS AC/20: 270 meters.
Clan AC/20: 360 meters.
Clan UAC/20: 360 meters.
Clan UAC/20 has higher heat. (Actually both Clan AC/LBX, and UAC/20 have canonical heat, IS AC/20 is just colder than it should be).
So there.
For all Clan ACs (not the LBX), there's also as many chances to get crits to triple crits against equipment through depleted armor, which is why Clan ACs (UACs as well) tend to wipe out your weapons without destroying your body parts much easier than most IS weapons can. Admittedly those crits also come out to 1 to 3 times the damage of each bullet's actual damage value, rather than the firing rate damage value.
Meaning if one of my 3 CAC/5 rounds from a single firing nets a triple crit, you'll suffer 1.67 * 3 (5 damage) to your IS AC/10 (out of 10). The second might have net a single crit (1.67) and the third might not have crit at all (meaning in total that was 6.67 damage to your weapon, where if a single IS AC/5 hit... it'd have a single crit roll. Either it did nothing, a single crit for 5, an ultra rare double crit for 10, or a nearly impossible you must have rigged the dice triple crit for 15).
So yeah.
There ya go.
Far as reasons to use the ACs or LBX over UACs.. The lighter calibers get more range. The heavier calibers are colder and none of them will jam when you spam them.
Don't know about you, but jamming an Ultra 20 after doing just 4 damage really sucks.