no

ubercharge makes it 60% resistant to crits or 40% resistent to normal damage
destroyes projecties but sacrificies uber build up (three shots for one uber)

I'm liking these stats valve should add this :D

My stat ideas:
Positive attributes; Ubercharge "electrifies" heal target and deals 40% of all damage taken to you and the target back to the person who dealt it, and adds 3 seconds of "shock damage" to an enemy after they get hit. Uber is also active when the medic's melee is out but not primary.

Negative attributes; 15% or slower ubercharge rate. Medic takes 20% more damage while ubercharge is active and has -15 to -25 max health.

Possible extra attribute (not sure if it is positive or negative or just normal); maybe the medic could gain a very slow health regen over his normal regen while the uber is active?

-25 Overheal
-25 Healhate
+10 Uberate
-The ubersaw don't give Uber

On a Ubercharge you can dead revive all allies for zombies for 10s And if a Zombie make a kill +25 of uber added and get more fast for the uber end.

It in reality, should be either a "Kritzkrieg" or "Medi-Gun" Reskin. I'm not saying it should not be a new weapon. But it seems like the particals best suit those medi-guns the best. and fromthe way it looks, it even looks like a kritzkreig.

-30% Heal Rate
+40% uber build rate
+3 seconds of ubercharge
+Heal Targets have 25% resistance to all damage when at full overheal

//Ubercharge: Both the weilder and heal target recieve bonus move speed, immunity to crits and cannot die while ubered. (Still loses health)

+Can damage enemies.
-can only heal friendlies with the health that is stolen from enemies
+50% faster heal rate.
+25% ubercharge build rate
Ubercharge damages enemies in a aoe, similar to the amputator taunt
-The healing effects of the crusader's crosbow and amputator are reduced by 75%

Pros:
Übercharge is replaced by Blitzcharge
When Blitzcharge is active, all enemies in the front of the player will recieve 15 dmg/s (limited range) for 8s
+10% Speed for the heal target and healer when healing
+100% Blitzcharge rate
Kills with Blitzcharge refill 50% of the charge

Cons:
-60% heal rate
No over-heal
Can't heal when Blitzcharge is active

I think we need a more offensive weapon for the medic, if combined with regulars medics in the team this could be a great pushing weapon while keeping the ability to heal, even very slowly, allies.

how about

no over-heal
uberchrage will increse teammates speed by 50%
last for 15 sec on ubercharge

taunt will speed you up 25% for 10 secs

A good weapon for combat medics
+Pros+
+50% Ubercharge Rate
+1.5s Ubercharge Duration
+Damages Enemies(1/2 Flamethrower Rate(No Afterburn, Duh))
-Cons-
-50% Heal Rate
-50% Overheal
+50% Weapon Switch Time

+ 60% Longer heal range
+ Alt Fire enemy medic to steal their Über
- No overheal
- 15% slower heal rate

+100% ubercharge rate
Uber split into three sections
Uber is replaced with a shock blast (right click cowmangler) that can either heals hit teamates or damage enemies, and disables building for 2 seconds

+faster uber charge rate
+longer uper duration
-ubercharge electrifies all nearby enemies the more enemies the less damage each one takes

Though this may be quite overpowered, I think the ability to revive dead teammates would fit nicely with the whole Dr. Frankenstein theme.

Perhaps this gun would allow you to mark a handful of players for revival. When those players die, they drop the same revival device used in mvm. Maybe the revival device would have its own health bar or timer, so the enemy team could ensure that perticularly valuable players stay dead at the cost of some additional time and effort. Medics using this item would also be able to see the location of the players they have marked for revival at all times, similar to the payload cart or sticky bombs from the scottish resistance.

As to what the actual healing and ubercharge stats would be, i'd expect they'd need to be severly nerfed to account for the revival ablity. In fact, this gun would probably lack an ubercharge all together, and instead focus on keeping players in the action through healing and revivals.

Thanks for reading and please let me know what you think!