constant table overflow error

[TK-421]

Okay,

So I messed up, I didn't know this was a thing and now I know, unfortunately this is after I have spent hours making this mission and haven't had multiple versions as I've saved it, I only had the one save file, and now that save is corrupted. 

Basically I was making a COIN type mission as a helicopter play ground. I had a bunch of FOBs around Damascus and a ton of singular insurgents and pick up trucks moving around to give me something to shoot at, kinda like a Blackhawk down style town that is full of angry people with AKs. 

After reading through these forums I have now realised that the trucks I put down with on road waypoints have caused this issue, but now I can't open my mission to fix it. 

Is there anyway I can roll it back to a previous save or delete the trucks or waypoints causing the issues through the Miz file?

I am not a coding wizard, I tried opening it up on the mission editor browser but it made no sense to me...

Please help? 

and thank you in advance.

Coin ops.miz