You can find research plans for acid grenades G-1 and pack of acid grenades G-1 as you progress through the game plot. You can find research plans for incendiary grenades G-1 and pack of incendiary grenades G-1 for attacking and defeating one of the wandering merchants.
You can receive more powerful versions of grenades of these types as a reward for playing nuclear version of the"Mole" mini-game.
If you have any questions,
you can submit a ticket to the technical support team.