DISCLAIMER: These are some points I consider important and are not related to the survey Matt gave to the members of SPCT team.
This is what I have noticed during this short test:
Weird Camera when the player is dead
There is no menu for the items you can buy
We'll need a better mini-map to provide us with information about the "dead zones" and the safe zones
Kicked due to inactivity (while dead and active)
New loading screen stresses the game and lags
The new contact cannot be found in the Contacts Menu (the one you open with J)
I believe that there should be better tutorials regarding this game mode.
1. Weird Camera
While I was dead and spectating another player I could notice that my camera was reacting to the players aiming. This seemed odd because I was looking somewhere else, so the angle was not quite right.
2. Menu for items you can buy
I'd rather enjoy a menu to buy unlockable weapons or one extra life rather than a pop-up that cannot be accessed at any time.
3. Better mini-map, more information
In my first game I didn't even notice when the square I was in turned into a toxic zone. I believe that games like PUBG or H1Z1 provide the player with a better mini-map, which offers information about the zone, time and everything that is needed.
4. Kicked due to inactivity
While I was spectating someone I have gotten 4 warning messages due to inactivity and then I got kicked. I was indeed active, pressing Up, Down, V, and any button on the keyboard. So you will need to address this.
5. New loading screen
While I appreciate the new loading screen, also thematic for the game-mode I have seen some lag on it. My PC is decent and I run the game at max settings at 60FPS, so it was a game issue. I believe you should find an alternative, such as images rather than a GIF or a Video for the current game engine.
6. New contact
I know this contact is meant only for this particular game-mode, but I believe players should be able to access it at any time for more information, daily missions or other rewards.
7. Learning the Riot Mode
I have seen that you've implemented a new section in the Tutorial Menu. Although, that is a bit hard to access, it is a great source of information. But you should take into consideration making a video explaining how this game-mode works or how players should approach it, specially those new ones.
Overall the Riot Mode seemed pretty fun, it's something else from the main game and missions and I bet you'll have fun with some friends and even playing alone it seemed to be enjoyable.