In a previous entry, I asked if a Marine automatic rifleman would actually move slower than a rifleman. The automatic rifleman carries more weight than the rifleman and it sounds reasonable to expect a difference in their speed.
To test this, I placed an AI AR and an AI R in one end of the runway at Utes. Each of the AI units had a move waypoint at the other end of the runway. I followed this race from a bike.
It was a perfect tie: both the AR and the R arrived to their destination at the same time.
I'm a bit surprised by this result. That big backpack the AR carries must be empty.