My friend and I were going crate running this game (play style where you attempt to get every drop) Instead of going straight for the drop, we have found it to be more lucrative to hide until the second group of people show up (especially for the first 2 drops). In this case we heard a UAZ approaching, and took visual cover in bushes nearby. Once they stopped, we proceeded to fire. My partner and I each killed one. The important part of this strategy is to loot your kills very quickly only taking the essentials before others show up and do the same to you. Go ahead and try this yourself!