I'm sure theres some meta-narrative here but unfortunately due to what I can only assume is a bug I couldn't proceed any further than the 2nd deathmatch level. Some weird sound was playing. The game would be more 'fun' if there was a way to improve the downtime ie: looking for enemies, or speed of player. I found myself getting bored and frustrated fairly quickly in that regard, I wanted more glitches and nuisance from the virus or whatever it is, but instead I spent my time slowly frustratingly trying to find it with plenty of headbob. I am sure in future iterations this will improve :)