They're both alright guns. The MTAR is considered better but I personally love the Type 25.
The guns in this game are alright all around. There are some that shine more than others but that's not to say you can't do well with one over the other. . --- GamerTag: Te1vanni Guard "Telvanni you would disprove everyone. :D"- Saint_of_Misery
You won't really know which one you like more until you give them each a try. After finally getting diamond assault rifles, I can say I like the MTAR a lot more than the Type 25. It's three-shot kill ability is what sets it apart for me since I tend to rush for most of the game. The Type 25 is statistically one of the faster killing assault rifles from long range, but recoil slows it down a little bit.