Under the "Characters" menu tab of the U4eT Mod Menu
you'll find 2 very important new checkboxes which are
checked by default:

->"ALL weapon can use Stamina/ClassAmmo" and
->"Replace all AmmoPickups with Stamina (U4eT Mutator)"

The first one makes the generic ammo/stamina system
available for *ALL* weapons - that means, when you
don't have a classweapon which only works with stamina
or classammo, the ammoamount of the weapon you currently
hold is increased by 10% (50%) of its maximum.

The second one tells the "U4e Tournament" (NOT the "U4e
PlayerClasses"!) mutator to replace every ammo pickup
(that would normally replaced by no matter what) with
generic Stamina and ClassAmmo pickups.

So using both of them together with the U4e-T. and the
U4e-P.C. mutators is a great way to combine the player-
classes with all U4e-(or UT) weapons of your choice
without the need to worry about ammo placement! -
- However you might want to turn them off sometimes
for more controlled ammo availability or simply for
watching the other U4e ammo pickups:)