- Yes
- No
The 30 second intermission between rounds can be useful at times, but often just slows down the game for good players. Plus if you end up going to round 35 (Which is usually the round where you win the game in my experience), those 30 seconds adds up to 17 minutes of standing around and doing nothing.
I think that having it just be something you can turn on at the start of a game and it stays on for the entirety of the game would be the simplest and easiest way to implement it, especially since holding a zombie at the end of a round is already the best way to get some free time.
On top of that, considering one game can takes upwards of an hour, I think that giving 2 silver crates per win would be reasonable instead of just 1. I think that 3 crates for 3 hours of gameplay, assuming you win every match you play, is just a bit lackluster.