Zombie Invasion mode

[Sick Ness Monster]

I like this, but I think that's probably pretty obvious. I've been playing around with the necrovirus disease reagent and have had a lot of fun with it. I think the game mode could be relatively interesting as a "disaster" like round. In my mind, it'd start off slow - A zombie or two gradually picking off crew and growing their horde. Later down the track the survivors would have to defend against an onslaught of the undead. Having them able to transmit the disease via a "bite" would be awesome.

The thing that's been percolating in my mind is how to avoid an unfun meta. What I mean by that is - "Oh, Pointer got whacked by a zombie - let's kick the shit out of him and throw him to the horde." Although that does sound fun, it should be saved for when people are being shitty - not just because they got bit.

I think the mode would need a few different things:

In my opinion - Getting bitten shouldn't definitively mean you're going to turn. It should give you a reagent or disease that has a chance to turn you, similarly to how epinephrine rolls a chance to stop cardiac arrest. Perhaps this could be managed via an anti-zombie drug, like Zombrex from Dead Rising? It could be bought or brewed up in a chem machine. Having the anti-zombie drug in your system would drastically reduce the likelihood for the infection to finish you off - but it doesn't make it impossible (just for extra tension)!

Similarly, it shouldn't be abundantly clear whether someone has been bitten or not. In all the movies, people never notice the bite as it happens - they either find out after a character quietly shows someone they trust or when they suddenly start trying to chew their friend's face off. The player would be alerted though, via HUD messages about feeling worried about this wound they've received, or via a status effect.
To ensure it wouldn't be too easy to find out whether someone was infected, I think it should require some kind of full body inspection that would need to take 15-20 seconds to complete. It shouldn't show up on health analysers, because again - that's too easy. Got in a scrap with zombies? Analyse everyone with a quick scan and- oops, Pointer's infected, let's beat him and throw him into the horde. Requiring a full inspection would allow people to hide their bite if so inclined. 

I was also toying around with the idea of some kind of incentive to hide a bite wound for players. So someone doesn't go 'I've been bit, I'm gonna wander off and zombify somewhere else', and are more inclined to possibly screw the survivors over later. But I'm not sure about that! Maybe people's natural inclinations to be bastards would be incentive enough. Maybe some kind of strength/ability boost? To demonstrate how they're mutating into a zombie, they get some new abilities that could be helpful to the survivors if managed effectively? I dunno.