You can stack officer buffs over and over again.
First you need an officer.
Use the the second to highest "Tactics" buff.
Shuttle to a camp 100 meters away.
The buffs should stay on you.
Group with another officer and make him use the Highest "Tactics" buff.
Now you should have the Highest "Tactics" and the second to highest one on you. Its a really good way to get your dodge up.
I got mine up to 70% using this cheat. Works with the other officer buff too

(Sorry I forget the name of it.)