Q: Why do all the carbines have different profiles rather then a carbine profile?
For a number of reasons: When weapon profiles where introduced only EFA where around and they did not have allot of access to Carbines.
The G43 and the SVT where completely reworked and most of their damage was moved from far to mid. The G43 even had more range than other small arm weapons.
when USF where introduced they where equipped with very efficient weapons because the main strength of the faction is infatry and light vehicles.
Relic started to deviate in some cases from original weapon profiles when it came to weapon upgrades. For instance the conscript PPsh that did not have good synergy with the mosin had its profile changed and it actually far worse than Shock PPsh close but allot better mid.
The point here is that carbine weapon are meant to have better efficiency in mid range. If 3 units cost the same and one uses smg the other carbine and the last bolt action there should be paper scissors rock connection between them. SMG should win if they fought from around 10 meter and closer, carbine should win if they fought between 10 and 20-25 and bolt action should win above 25.
There also other difference between the weapons apart from DPS but we can see them later.