Why tf is the mc being so cagey? He wants to keep surviving snd take down the commity. Well Grandpa Whick there clearly wants the same. There's literally not a single valid reason to withhold his intel on Jiang and his goons. Quit being a dumb f*ck and let the old rabid dog tear at them.
I always wonder if I will ever get the chance to read a Manhua or Manhwa where the Mc is a logical person with a heavy dose of common sense in an apocalypse setting, because clearly this guy only has two braincells.