War of Resistance: What Should I Do If I Am Bound by Doraemon at the Beginning?

Bad news, Xie Wendong traveled back to the land of Qilu in 1939. There was no super system, no attribute panel, and no extra large space. The good news is, he's not alone. There is also a cat. And this cat star's last name is Duo La. It's a pity that the cat's name is not A Meng, but B Meng. Doraemon! The opening mission is to kill the traitor Fan Tianhu! The second mission is to capture the first stronghold of the puppet army! The third mission is to snipe Numata, the executioner of the Jinling murder case...