Russianspys little understanding of reality.

[Hat Crate]

not sure how a prop obstructs someones vision

In response to this, the prop's construction was as follows:
Rapidly color changing cubes that are basically seizure-inducing. Specifically 3 significantly large cube props (1 red, 1 blue, 1 green) set to the Fast Strobe effects with the Color tool, and the flashing electric material from the Material tool. Imagine having multiple sets of these around the map that are actually physically painful to look at.