tippmanns are mechanical guns which are made to be robust and customizable if you want to make them look realistic. in reality you want what is called an electro-pneumatic gun which operates using a circuit board and a solenoid. they are generally lighter, faster, easier to maintain, more efficient and also won't break paint easily inside the gun due to a feature operated by the board called 'eyes'.
examples of good entry level guns in this style are planet eclipse etha, invert mini, proto PMR, GOG envy.
in general don't go for mechanical guns (tippmanns, BTs) since none of them can have the same features as i explained above.