I have been playing solo.
I don't think they ramp up the difficulty on co-op.
Co-op is a must in order to beat the game in Inferno.
P.S The fucking bastards throw fucking cars at you now and you get the real ending after beating Inferno
Not as many but more then enough to fuck up your shit if your not careful.
The bodies do not stay on screen and that makes me happy.
As a side note the last 2 levels on hard are a fucking nightmare with so many shit going on. I need a co-op buddy once I hit Inferno.
Level 10 on hard is not going to happen anytime soon.
The ants,spiders,ticks and robots I can deal with.
The 4 bosses I have fight at the same time on the other hand -_-:
Games out this Saturday.
Also:
1. Huge swarms (press vids thus far fail utterly to show this)
2. 300+ weapons ranging from incredible to absurd
3. Constant claustrophobic horror from huge swarms.
4. Giant monsters with more HP than God to fight while also fighting the huge swarms.
5. Blow up every single building.