Heavy machine gun fire from Frank- Nightwing somehow dodges all of it and lands on top of the grenade Frank rolled accross the alley while Nightwing was doing his best impression of a gummy bear. Not dead yet, Nightwing is dazed, wounded and in no condition to play gummy bears anymore (which has wounded him on the inside more that any grenade ever could) Nightwing goes to confront frank hand to hand, the honerable way to fight! Frank throughs his machine gun aside as Nightwing approches, Nightwing swings at Frank, Frank ducks this as Nightwing is not in top form anymore, grabs his back up handgun from his boot and shoots Nightwing in the Knee caps, smashes him in the face with the pistol as he goes down.
Now comes the 'Choose your own adventure' part
If you want Nightwing to be shot through the skull after he is knocked out turn to page 87
If you want Frank to leave the unconcious Nightwing alone turn to page 53
even in a bullet proof suit you would go down from a bullet to the knee, the suit would stop the bullet from going through you but you'd still feel a lot of the impact and in a joint that size it would probably still break the bone .... unless the suit is extremely rigid in which case the bullet may just bounce off ... but I'm assuming it isn't as this would severly limit his gummy bearness
Frank shot Nightwing in the knee to no effect! ... Nightwing uses his recently shot knee to kick the crap out of Frank, Frank is now dazzed and grabs a knife out of his other boot and randomly lashes out in front of him, Nightwing now very focused on Franks attack easily dodges each swipe with a step backwards, a brick that was loosened by the earlier grenade falls and hits Nightwing on the top of hit head. Momentarily dazed Nightwing recieves a Knife to the eye and brain from frank.
but if that was the case ... Nightwing gets Knifed in the eye! No effect!! Frank is amazed and impressed, so impressed he proceeds to remove the knife and stab himself in the eye to see if he is also immune ... He IS!!!! Frank decides to test how immune to attacks he is and just stands there as Nightwing pummels him .... Frank is not hurt ... Frank wonders why he's bothered with weapons all these years as he realises he IS a weapon!!! Frank them turns into cannon transformer style and blasts Nightwing!! Nightwing now with a gapping hole in his abdomen is amazed that he too isn't hurt! ... both look at eachother in a curious way and wonder if they are in a Deadpool comic
Nightwing takes the majority in this. Nothing against Frank, but NW has consistantly held his own with and out right defeated people who are beyond Castle.