Advance Fire Hose System

its.... js sad that this dude clearly saw that i've this but yet still uploaded it like wtf bro rly thought nobody will notice that im original uploader?

It never works for me, i follow the tutorial, i do everything correctly and it still refuses to work when i try to grab an attack/supply line. If you could send a game file with everything set up or tell me how to fix the issue that would be amazing