Sorry for the late reply, here's most of what i remember from seeing the developer walk through on Tuesday.
Apologies if some of this may be vaque or contradictory to other previews, it was almost a week ago, I didn't take notes, and this was the very first thing I saw at the show.
- The customized weapons were pretty awesome. Flaming sword, some kinda staff w/ blades all over it, and a grenade launcher kinda weapon that was just decimating groups of zombies. Looks like they got this part right in some respects. Plus he was tossing a weapon into a zombies chest, fighting off a few others, then running over to that zombie to get it back.
- Great explosions, fire, and smoke effects
- If I was understanding correctly, when you want to make a custom weapon - it shows you exactly where to get the items for it on the map. I don't know what the requirements are for displaying this, but they did it right from the start.
- You can spend a skill point to automatically get a weapon you might need to create a custom one. A weapon suddenly appearing in your inventory sort of took me out of the experience. Like you're already telling me where to get the weapons why would I need this?
- Hundreds of zombies. My face basically made a "holy shit' expression during some parts. There were a shit ton of them, everywhere. Made some areas look impossible to get through on foot.
- Character upgrades. Looks like there will be a lot of focus on this. After leveling up, they showed a bunch of categories to add points to, but honestly I forgot what they were. Seemed like the usual stuff. Didn't look like a branching skill tree though.
- Seems like there will be a lot of vehicular stuff. This may be necessary since it looked like the map was gigantic. But he went into a garage and had like 3-4 to choose from, plus the main character is a mechanic so I'm guessing there's a bigger emphasis on this.
- He drove a car into a gas station, jumped out and kabooom. Sure it dropped to a few fps but it was still cool.
- Create weapons anywhere. No more work bench. You have to create them during the game so I guess you can be attacked while the meter is filling
- The framerate was abysmal. I'm hoping this gets addressed as I've seen it happen w/ plenty of E3 builds. But man, it was really bad. It was constantly struggling to stay at 30. When he panned the camera to show the amount of zombies, it was 15-20 at some points.
- It's missing that trademark whacky japanese humor. I guess you know it when you see it, but this seemed to have none of it. They did show off him running around in a rhino mascot type suit, and a dress - but it just wasn't hitting me. They did pan past a kobun helmet though.
- Magazines are in, unfortunately I forgot what was new about them.
- The character seems super bland. I still don't know why Frank West isn't the main character in every Dead Rising. Taking pictures was awesome.
- The smartglass integration had me groaning. Hopefully there's another way to drop airstrikes, but they did seem a little cheap (but looked awesome)
- Looked like a much bigger focus on outdoors, though he was going inside plenty of shops and even in the sewers. But honestly it felt like a typical open world map which I wasn't crazy about.
- There was a side mission where you had to rescue a friend in distress. The guy seemed to be hiding the whole time, once all of the zombies were gone he popped up, said thanks, and ran off.
Most of what bummed me out is that it just seems like a generic zombie game with some ideas from Dead Rising. This probably would've been the game to get me to buy an xbox one, but I left the zombie tent disappointed.
I hope it turns out well and sells since I love Capcom, but at the same time I hope it bombs because I love Capcom and wish they would stop with this bullshit. They already screwed up Resident Evil, I'd hate to see another one of their franchises go south.
Hope this helps! If I remember anything else I'll be sure to post.