Discussion on the numbers in combat

What the role of the numbers? Well the answer is, some online games like MMOS, numbers is a sign, one side with large numbers mean they have more chance of wining. However, in a game like MO which will apply manual targeting and friendly fire strategy. Numbers in a game plays less important role. Take DF as an example, a group with small numbers can defeat large groups in some degree, solely because large group advantage itself now becomes their disadvantage. They tend to get in each others way and get friendly fire. If they can not be well trained and organized, they will get more damage.
According to the above discussion, we obviously can see numbers are not very important any more in a large group where discipline and training will play more important role. Of course, numbers are still important symbol, especially when a very large group fight with a quite small group. In the case no matter how good the team member in a small group is, numbers can overcome.