I saw that error you posted in the comments.

This error looks a bit different from what I've seen in the past.

Have you tried disabling all other addons? If you have, which version of Gmod are you using? Is it just the latest update?

I disabled all my addons. The aircrafts do now move, but all the other bugs still occur. I think it is the October update. I'm using the Dev branch if that means anything.

I'm going to try changing branches

I figured it out. The mod causes errors in the Dev branch. Any other beta branch of the version works fine. Thanks for the help! Without you, I would've never considered changing versions.

For some reason the mod causes combine to not shoot, I tried disableing the combine freindly thing and it fails to work meaning everytime I have this mod on my own combine will not shoot me

When you reload save all aircrafts stop following the track.

the npcs spawned are friendly doesnt work unless i disable alot of addons, i have gone through my addon list atleast 5 times now and i cant think of any addons that might break it. maybe a npc spawner, but i uninstalled all of my npc spawners, the only addons that could possibly break it would be an addon like drg, vjbase, or something like a pill pack. please help

your gunship and helicopter spams the console with their pathing...

every npc refuses to attack me please help

creates errors when spawning a sb advanced nextbot

[Enhanced Sandbox NPCs] lua/autorun/server/sv_enhanced_sandbox_npcs.lua:579: attempt to call method 'Classify' (a nil value)
1. ESBOXNPCS_HandleNPC - lua/autorun/server/sv_enhanced_sandbox_npcs.lua:579
2. v - lua/autorun/server/sv_enhanced_sandbox_npcs.lua:978
3. Call - lua/includes/modules/hook.lua:96
4. Spawn_NPC - gamemodes/sandbox/gamemode/commands.lua:548
5. unknown - gamemodes/sandbox/gamemode/commands.lua:573
6. unknown - lua/includes/modules/concommand.lua:54

@Blixbion
Although the console didn't list any errors, I have several of the settings enabled, but the Combine soldiers don't move as a squad, and even with "NPCS Friendly To Spawner" enabled, the Combine npcs still shoot at me.
Edit: Never mind, I solved that particular problem. Turns out I didn't enable patrolling. :)

NPCs shoot above my head idk if its because of this addon

For whatever reason, aircraft NPC's for me seem to just fly into a certain spot, and then stay there for the rest of time like there's no navmesh or path, it used to work for me and they could actually move around

I'm not sure what addon is conflicting with this, or whatever setting i put on that breaks the paths

npcs wont alert friendlies or react to gunfire, they'll only attack if an enemy is directly in line of sight. even damage doesn't alert them

hunter chooper keeps following me but its always behind my vehicle so it cant bomb me