Snake nest - sabotage

finish the game twice, when the mission “my friend Timmy” is over, I’m supposed to follow the camp tracks, but instead, I intend to talk to Sir Radzig as if he had already been on the field. Once I talk to him, he gives me the order to go sabotage the camp, but once it arrives, the enemies are inside the tents one inside the other and it does not allow me to poison the cauldrons or set fire to the arrows (I I have 7 poison in the inventory and two torches) and on the map I do not see any main objective, it is worth noting that the game started before the 1.8 update

PD: sorry for my bad english

The main objective is to scout out the camp. to find strengths and weakness in their defense as well as their numbers and the best area to attack from.

The optional objectives are optional purely. you only need to set fire to one barrel of arrows and poison one cauldron and then you escape. while you can do it sneakily, it’s just easier and quicker to poison cauldron, set fire to arrows and then run away because whether or not you do has zero effect on the upcoming battle other than the game saying you succeeded/failed sabotaging the camp. at least the two times i’ve played the mission. (versions 1.0 and 1.7.1)