I have notice a bug and thus want to report it to you guys.
Please refer to the screenshot and you will able to see the enemy sentry is firing the wrong sub, that one carrying 4 drillers instead of the one carrying 10 drillers.
Screenshot_2016-01-11-09-22-15 (2).jpg (160.47 KiB) Viewed 3941 times
I don't think this is a bug. The sentry targets subs based on the amount of damage it will do. If a sub has 20 or less drillers it will destroy 1. So in this case both subs are seen as equal targets. It's likely targeting the 4 driller sub because it is heading towards the sentry itself, so it's seen as a bigger threat.
"You want to believe that there’s one relationship in life that’s beyond betrayal. A relationship that’s beyond that kind of hurt. And there isn’t." -Caleb Carr
Edit: if you're too lazy to read that, the solution is: " Sentries prioritize closer subs if and only if the amount of drillers that will be lost from the other subs will be the same."
R10t-- Software Engineering student by day, avid gamer by night.