66% clip size
200% reload speed
70% fire rate
110% damage
300% fire rate while connected to dispenser
no dispenser effects while using this weapon while connected

+15% move speed on wearer
Adds knock back effect (life force a nature)
-15 max health on wearer
-66% clip size

Perhaps -50% clip size, reload speed, and firing speed with +50% damage and infinite ammo ONLY when connected to a dispenser

As in, both infinite ammo capacity and clip size

I think it should kinda be an upgradeable shotgun, maybe like this

Level 1: 100 metal
Upgrade grants higher accuracy, and quicker overheat time

Level 2: 150 metal
Upgrade gives ~15% more damage, and Pneumatic pumping for higher velocity bullets. Barrel slowly turns red when overheated

Pneumatically pump by holding right click, Takes 3 seconds per pump, and up to a max of 3 7 pumps, and up to 150% bullet velocity, aka enough to do headshot damage.

Level 3: 200 metal
Upgrade makes shotgun set enemies on fire, but does 75% less afterburn damage

-Shotgun overheats after approximately 18 shots in succession, without a 3 second break
-Overheating Causes roughly 1% of your health per 3 seconds while overheated

Feel free to tweak this, im not good with numbers

pros:
+ damage increases by 10% for each building you upgrade, maxes out at 120%
+ 30% faster projectile speed
cons:
- 40% damage penalty to start with
- 33% smaller clip size

i like the overheating and upgrade idea

Originally posted by ccoco9883:

I think it should kinda be an upgradeable shotgun, maybe like this

Level 1: 100 metal
Upgrade grants higher accuracy, and quicker overheat time

Level 2: 150 metal
Upgrade gives ~15% more damage, and Pneumatic pumping for higher velocity bullets. Barrel slowly turns red when overheated

Pneumatically pump by holding right click, Takes 3 seconds per pump, and up to a max of 3 7 pumps, and up to 150% bullet velocity, aka enough to do headshot damage.

Level 3: 200 metal
Upgrade makes shotgun set enemies on fire, but does 75% less afterburn damage

-Shotgun overheats after approximately 18 shots in succession, without a 3 second break
-Overheating Causes roughly 1% of your health per 3 seconds while overheated

Feel free to tweak this, im not good with numbers

That's actually a pretty good idea, but make it unable to upgrade for about 2 minutes between each upgrade. Also, levels should cost the same amount as it does for buildings to upgrade.

To upgrade your shotgun, open your PDA and select your shotgun. It upgrades in 5 seconds. You can't switch weapons while you're upgrading. A special animation plays while the Engineer upgrades his shotgun.

Level 1 (starting level)
Mirrors the stock Shotgun, but overheats the easiest (10 shots) and can cool down after a few seconds of no use. Overheating will cause you to lose 5 HP and wait 3 seconds before you're able to use it again. It also has a 10% faster reload speed.

Level 2 (200 metal)
+25% more pellets
+15% faster reload
+2 more shots to overheat (12 total)

Level 3 (200 metal)
+25% more pellets
+20% faster reload
+20% faster firing speed
+8 more shots to overheat (18 in total)
+19th shot inflicts after burn
-75% afterburn damage
-15% slower cooldown time
- +1 damage to self on overheat

With those additions to your idea, it'll be a useful and fun shotgun! It might need some more cons, though. The best way to know would be to use it with these abilities, but we obviously can't right now.

with that much complexity and the way valve modularly adds updates, with any more than 3 people running this on a single server ain't no one gonna be gettin' over 10 frames

+30% Travel Speed
+60% Fire Rate
ALT Fire: Cause Train Whistle to Blow (just for fun)
-60% Clip Size
Marks You For Death When Active
Critical Hits cause targets to Steam, making them move faster, and taking 1 health a second for 15 seconds.
Feel Free to Tell Me That My Ideas Are ♥♥♥♥♥♥♥♥, and Say I'm an F2P. Feedback is Important in a community, regardless of intentions.

+30 Damage
HUGE KNOCKBACK
+20 Move speed when active
-50 Clip
-20 Move speed when not active

Those are my stats. Valve needs to add this ASAP.

I'd like to see it as a reskin for the Frontier Justice.

+100% fire rate
- 20% damage
-50% accuracy

Knockback (30%)
-5 dmg,
When health is above 75, -15% dmg