You asked for help I'm giving it, I'm just saying with a start like that you are creating problems for yourself.
As for what the vial contains you said...
Angelsboi said:
I dont know what to do after that. There hasnt been an outbreak yet and the vial contains a new strain, the Y7 Virus.
Also
Also, Chief Ironside Burns (RCPD) KNEW what was going on. So whose to say the cops wouldnt take it and then hand it over to their chief, who, hands it to Umbrella (RE 2).
And if he does why should the players care, they have done their duty as citizens, and as far as they know the police are handling the matter and they go about their business as normal.
Which is the main difficulty with modern day campaigns, what stops the players just handing over everything to the appropriate authorities?
Cyberpunk/Shadowrun takes care of this by the players generally being involved in illegal stuff.
Superhero games take care of this by the players having more power and responsibility than the actual authorities.
Vampire take care of it by the Masquerade.
The zombie horror gains take care of it by either isolating the characters or having the authorities already swampped fighting zombies so its everyone for themselves.
From what you have discribed of your setup, you have no army of zombies at the start and the characters arn't isolated. What reasons are they going to have to do things themselves, when if they acted in character they would probably just hand it all over to the police or medical personal to deal with it.