One of them somehow manages to hit him with a car while battling on a bridge suspension line, but then they leave him alive, so he comes back to f*** up their shit later.
Seriously though, in h2h this would be a more prolonged version of the Watchmen movie fight, considering how durable the team is. Ultimately Ozy should win though. As to the weapon scenario... I don't think Ozy can catch quite that many bullets 😛 Even just adding swords and things would swing the result. Hobbs and Dom should be able to tie Ozy up long enough for Shaw to get one clean sword thrust in, which is all he needs.
It's not really a question of intelligence. It's a situation of fighting three opponents, two of them armed with weapons, and having a limited number of limbs with which to block, counter and strike with. Using tech and prep to stop the visions of Manhattan isn't the same situation as fighting three strong, skilled, tough and experienced opponents with weapons. Hobbs and Dom just need to keep Ozy's hands busy long enough to prevent him from blocking one good strike. Because let's be real, Ozy is good, but once he takes a serious sword injury things are going to go downhill for him rapidly.
Blunt force trauma to the face isn't quite the same thing as getting stabbed say, for example, in a lung or kidney etc. We also see the F&F guys tank some ridiculous damage, but none of them will fare any better against being stabbed either. If Ozy could simply tank bladed weapons he wouldn't have bothered avoiding the knives in his fight with Comedian.