Wilshire gave the correct answer, but wanted to expand on that. Cargo 200 was a Soviet code word for transporting filled coffins. It would be what you write on a cargo manifest. It morphed into simply ‘200’ and ‘300’ referring to dead and wounded respectively.
OPs syntax is a little confusing though (he might’ve just copied the title / description of wherever he got that video from). 2-300 makes it sound like from 2 to 300, or some direct connection between the 2 and 300. 2x 300s would’ve been more clear.
Wilshire gave the correct answer, but wanted to expand on that. Cargo 200 was a Soviet code word for transporting filled coffins. It would be what you write on a cargo manifest. It morphed into simply ‘200’ and ‘300’ referring to dead and wounded respectively.
OPs syntax is a little confusing though (he might’ve just copied the title / description of wherever he got that video from). 2-300 makes it sound like from 2 to 300, or some direct connection between the 2 and 300. 2x 300s would’ve been more clear.