We see that Integra, Penwood, and the rest of the Round Table are waiting. 

Integra: Alright, they should be here any second now. 

Penwood: But if there's no way to get upstairs, how are they going to- AGH! 

A roof panel falls on top of Penwood. 

(Y/N): Sorry! 

You and Team RWBY enter. 

Ruby: We're here to help! 

(Y/N): Yeah, also with- OOF! 

Seras falls on top of you. 

Yang: So, getting some nice, cute vampire butt? 

(Y/N): GOD DAMN IT YANG! 

Yang: Heh! 

Walter: Talley-ho! 

Walter was the last to enter. 

Integra: Excellent timing. 

(Y/N): Yeah, just swell. 

Integra: The first two floors have been entirely overrun. Communications with the outside have been cut off, we lost all our men, and Alucard is being- 

Everyone: Alucard? 

Integra: A total ass, yes. So, do you have any plans? 

Yang: WE KICK VAMPIRIC ASS! 

Blake: And Walter, well- 

Walter: I will do exactly as the butler does, and tidy up. 

Back in the hallways... 

https://youtu.be/g8gcZLXsOns

Walter: Hello. My name is Walter C. Dornez, ex-vampire hunter and butler to the Hellsing Organization. I answer the door, I clean up the estate, and I take out the trash... and I also kill self-entitled little twats like yourself.

Jan: Well, ain't you just the textbook fuckin' definition of classy! But guess what, Jeeves, that garrote wire won't do shit for dick against armor this thick!

He snapped his fingers, and a bunch of his subordinates, wearing armor, emerged to defend him. 

Jan: What's that, Alfred? "How thick is it?" Well, half as thick as mah dick! So thick enough that you need a fuckin' anti-tank rifle to pierce it, and I don't even see a piece on your wrinkly old ass.

(Y/N): SERAS! FIRE IN THE HOLE! 

Seras was revealed to have an anti-tank rifle in the back! 

Seras:

https://youtu.be/bYqxyCUn5uc

Play from 0:03-end... 

Her shots pierced their armor as you and the girls started to charge in! 

Jan: Oh fuck, that's an anti-tank rifle. OH FUCK THAT'S AN ANTI-TANK RIFLE! 

(Y/N): LET'S GO! 

Team RWBY: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! 

The ghouls didn't even stand a chance! 

Meanwhile ... with Alucard... 

Alucard is just watching TV until suddenly Luke destroys it upon making his entrance. 

Alucard: That was a 70-inch... plasma screen TV. (taking a deep breath) So, how can I help you? 

Luke: You must be the great Alucard. 

Alucard: 'Sup. 

Luke: I've heard quite a lot about you. 

Alucard: Oh, really? 

Luke: The night walker... who glides through oceans of blood. Beyond human. A monster whose power radiates with a darkness that casts a shadow on darkness itself!

Alucard: Oh, you dirty bitch, work the shaft! 

Luke: Ex ... cuse you? 

Alucard: Oh, I'm sorry, I, heh, I like to dirty talk when someone's sucking my dick!

Luke: Perhaps I should just skip to my point. My name is Luke Valentine. 

Alucard: 

https://youtu.be/ACL847IZF0c

Luke: I'm trying to have a serious conversation with you here.

ALucard: Oh, so am I. And I'm failing. And I'm sorry for that. It's just that I'm so agitated, because this blonde little shit strolled into my room, destroyed my 70-inch plasma TV, and is trying to impress me like I'm his alcoholic father!

Luke pulled out his gun,  but just as he did, Alucard pointed his at his head. 

Alucard: Be a sport and grab Daddy another beer, would you? 

At that same time... 

Yang and Seras pinned Jan to the floor! 

Seras: Arm bars everywhere! 

Jan: ARGH! Let go of me, you stupid bitches! 

Walter: My, pretty impressive. Where did you learn those holds? 

Yang: Experience, mainly a lot of bar brawls. 

Seras: What do you think? It's like I'm a Police Girl, or something! 

Weiss: How pleasantly sarcastic. 

Jan: Wow. Gee willikers, mister. I sure am sorry for slaughterin' all your guards and tearin' up your mansion. I promise I've learned my les- ARGH! FUCK! 

You stomped on his hand. 

Jan: LEARN TO TAKE A JOKE, ASSHOLE! 

(Y/N): And everything that comes out of your mouth is really pissing me off! Now, tell us everything you know, or I'll have Walter skin your dick like a banana! 

Jan: Alright, alright. What you do... is you go down to the local pharmacy, ask for something called "Viagra", and it'll help ya GO FUCK YOURSELF!

Walter was ready to attack, but then Blake heard something. 

Blake: WAIT! 

A bunch of ghouls enter. 

Everyone: (horrified) HUH?! 

Ruby: ALL OF THE HELLSING GUYS ARE- OH NO! 

Yang and Seras were knocked off by Yang as the Hellsing Guards came closer and closer. 

Jan: And now for the upcoming company picnic. Unfortunately, all your douche bag coworkers are bringin' is their own rotten flesh. Still better than potato salad if you ask me. Now if you don't mind, I'ma go eat that Hellsing bitch!

He started dodging you all as Walter used his garrote wire on Jan's arm! 

Walter: I've got your arm! 

Jan: SO SHOVE IT UP YOUR ASS! HAHAHAHAHAHAHA! 

Jan kept running even as his arm was ripped off! 

Then, the moment he reached the door and kicked it down, he was met with Integra and the financers pointing their guns at him. 

Jan: 

https://youtu.be/xxd6QyYstVw

Integra: 

https://youtu.be/VMI2GjOhqVg

They started blasting the shit out of Jan, leaving him riddled with bullets! 

Jan: ARGH! Fuck motherfuckin' cunt with a fuckin' titty! Fuck! Fuck! Fuck!

He lay slumped against hte wall as the gunfire stopped and was met with you, Team RWBY, Walter, and Seras. 

Jan: Fuck! Where the fuck did my ghouls go? 

Walter: They were dealt with. 

Blake: They didn't deserve that. 

Jan: Well, least I'm gonna die with a raging boner. 

Weiss: My God, would you stop? 

(Y/N): Yeah, now start talking about what you know! Or else! 

You cracked your knuckles. 

Jan: HAHAHAHAHAHA! I don't know what's fucking funnier? The fact that you think you can intimidate me, or that you think my boss would let me live if ya did. 

With that, he set himself aflame!

Jan: AND NOW I'M ON FUCKIN' FIRE! SO NOW IT'S A FREE GAME!

He gave one giant middle finger to everyone in front of him. 

Jan: The one who sent me was Millennium! 

With that, Jan burned up until all that was left was his hand, still giving the finger. 

(Y/N): Millennium? Did anyone just hear that?

Ruby: Yeah, heard it. 

Yang: Wasn't there another guy? 

Back with Alucard... 

https://youtu.be/tOX48CVUMMY

Play from 0:03-end... 

The Round Table was listening in on all of it. 

Penwood: Who ... is that exactly? 

Integra: Oh, that's Alucard, the one we talked about earlier. This is what happens when he has to entertain himself. Oh, so what was that issue about funding?

Penwood: Issue? 

Irons: What issue? 

Penwood: I don't see an issue. 

Old Man 3: Shut up and take our money! 

Much later... 

Alucard: And just like that, everything turned out all right in the end. 

(Y/N): Well, except for the fact that most of the staff were turned into ghouls, and we had to kill them. 

Ruby: It's a shame we had to do it. 

Yang: Hey, at least Seras got to use her new cannon! Bitches really do love cannons! 

Alucard: That reminds me, for whatever reason, did we ever find out who sent them? 

(Y/N): He said Millennium, but that could mean anything. 

Alucard: It's the Nazis, right? 

(Y/N) and Integra: No. 

Alucard: But you, I'm right. 

Integra: Bet you you're wrong. 

Alucard: Bet you you're a skank. 

Integra: Bet you you're an asshole! 

Alucard: BITCH I EAT PEOPLE! 

You and Team RWBY just facepalmed.