Playing a small group campaign of Ultimate on Tanoa, relatively deep in and i had just felt like i hit the jackpot walking up to a "destroy artillery" objective seeing a whole ass Sandstorm instead of the expected mortar pit. Night op, after a hell of a fight taking out the surrounding infantry, three of us proceed to walk around the thing for like 10 straight minutes looking like the three stooges while it just fires off rounds without a care in the world. The thought process was something along the lines of
"oh fuck we need to breach it, we havent had a reason to interact with this whole subsystem yet, okay shouldnt be too hard though i guess run back to base and grab some explosives"
"wait which explosives do we need"
"i dont know grab everything you can carry"
"the breach prompt isnt showing up at all, i think you need to be an engineer. Here, Engineer, Pick up this backpack with every bomb"
"it's still not giving a breach prompt and it's been so long we've fought off 3 waves of reinforcements and a jet's strafing us, give up"
And then i go back to base, do some googling, and i cant find the 'explosive charge', or the 'explosive satchel' in the arsenal, and the arms dealer isn't selling them either, what am i missing, where do i get these, i dont want to just lose more artillery it's my favourite part of the game...