For a good woodsball player the aperance of his gun is very important and the emc it's a very good option to transform these markers into a tactical guns.
For many players the appearance of their guns is very important.
I would say this is more apparent in speedball with colour co-ordination, 'individuality' and fashion.
For a good player of any kind, form and function are the most important factors.
Things such as it shooting when you pull the trigger, balls mostly going straight where you point the barrel, reliability, ergonomics etc.
'Tactical' is often confused with woodsball & scenario. Its not very tactical to bulk out your gun.
Making it ergonomic for you is tactical - rails offer the potential to add a grip in the right place for you.
Attaching many other things are just bulk.
A tactical light may be of use - for night games and underground / CQB games. But the tactical player will leave it switched off, bring the light for safety requirements, finding your way out after the game or searching cleared rooms.
Cameras can be mounted to rails, these are good to use.
A sling could be added to a rail which lets you get hands off, if appropriate.
Sights are counter productive for the majority of the time, for a variety of reasons.
But you want a magfed the only one problem it's attach it "I prefer a rotor"
I realy don't understand what you are saying here. There are magfeds that can have hoppers, and magfeds that can't have hoppers.