Deception

Always hide your numbers or exaggerate them.
If you have to few, then appear as many. In the field employ small heaters, infrared sensors will register them as body heat.
If to many, appear as if few. When they come looking for you they will send to few, giving you the advantage of numbers.

Well Stocked Deck

Lies, damned lies, and statistics. Never fail to have an equal measure of all three. Remember a well placed lie covers your ass. A damned lie burns your enemies. Statistics, well kill one person your a killer, kill a million your a hero....