Thunder Warrior Saves the World

After Lu Wu transmigrated to Andong Star and was trained by the system to become Andong Star Superman, he was thrown into another world with his synthetic brigade.
Faced with this group of indigenous people wielding weapons at the level of World War I, who would fight tooth and nail for underground resources, Lu Wu felt that everyone should prioritize peace and take a longer-term view...
What? You have an objection?
Looking at this 3BM42 fin-stabilized discarding sabot armor-piercing round, here's a chance to rephrase my thoughts...
(This is a completed novel with 640,000 words, so you can jump in without worry. You won't get lost.)