Anti-Japanese War: Signing in from Eight Hundred

Traveling through the Anti-Japanese War, the Battle of Songhu was coming to an end. The large troops had withdrawn, and only 800 warriors were guarding the Sihang Warehouse. Qin Tian activated the sign-in system, and he can get rewards as long as he signs in every day. "Congratulations to the host, you signed in successfully and received the daily reward: Barrett anti-material sniper rifle." "Congratulations to the host, you signed in for seven consecutive days and received the weekly reward: Advanced Firearms Mastery." "Congratulations to the host, you have signed in for thirty consecutive days and received the monthly reward: get the super soldier serum." "Congratulations to the host, you have signed in for 365 consecutive days and obtained *****" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.