Curious about the valken ammo, but i´m a solid tomahawk user, field is good for the low grade paint that it is, ZERO should be used for anti aircraft airsoft ammo, it doesn´t break well, and with hot weather it´s like throwing stones
Classic is very good medium grade paint, sometimes i got it in blood red fill

Training is like classic so...

Competition is super nice, high end paint that isn´t too brittle, so it doesn´t break on the barrel, but any contact on OP4 is usually good for a kill.
Finest, i have a love/hate relationship with this one... My two favorite fill colors are fluorescent blue and pink, this one is always blue so i love it, but!
...it´s a brittle shell, so in the spring and summer it´s fine, works wonderfully, but if the weather changes to cold or wet.... use something else, competition tolerates cold and damp weather..