Hmm...I'd say wait until bluetommy responds since he left it with his character calling yours and waiting for a reply. but those men that were standing at the window staring at your character and friends, I assume are The Irish Mob?
Don't know what's going on in that cranium of yours lol. if you want, the action could get started while you're trying to talk to your boss. Anton could be one of the first to be attacked by the Irish mob in their heavy assault. They will be spreading out in those ten vans in different locations attacking Ivolgin's men. That can be another alarm for Paul to realize the attack has already begun. it's up to you. lol