For that reason, limiting yourself into a set formation, or a set role will decrease your ability to react to change. Your troops need to be crosstrained so that they are comfortable in any role at any position in the formation. Now, its not a bad thing to have a guy who rolls out as your pointman most often, because he will be good at it (hopefully). But should he go down, you need someone that is going to fill in.
Every man can have have a specialty, and most likely will, but must be able to perform well outside that as mission dictates. For that reason, if you have a sniper, he had better be ready to work as a designated marksman in a firefight. A normal rifleman should have enough rounds to sustain some cover fire. Your heavies have to be able to run and gun with their full combat load. Your medic is just another trigger puller until someone goes down.
As a commander, its your responsibility to put your people where their strengths work the best, but to train out their weaknesses as best you can, and where you cant, work the other strengths in your squad to cover those weaknesses.
In the end, dont know if this has helped at all, but just try to remember not to limit yourself. If you plan things like this down to the last detail, and always think its going to work out this way, it wont. If you let some things run a little loose, you have room to adapt, and that is the true strength of a squad leader in woodsball.
Normally I would agree with you but that does not work in super specialized squads. My team is looking at moving to a super specialized saboteur/spy team. We have tried to cross specialties with other specialties but it has come to be to hard. For example, Wayne's World of Paintball has a rule that says that if you are in a ghillie you do not need to wear a color arm band that says what team you are on. We are going to use this to move around the field freely (aka we are putting our entire team in ghillies). It is just to difficult to put some of the items that you would use in a squad type like that under a ghillie. But good post