Why not re-imagine barricades?

[Galen_Thalheimer]

People wouldnt repair their barricades if it would cost then mats(and thus money) all the time.

I don't think it should be a per repair thing. But maybe the craftable item is a "engineer's toolbox" or something like that. And it gets used up like the cade/medic box. Still makes being an engineer useful, and requires some level of item to be acquired, but removes the problem of too many cade crashing the server. If one disappears, then it's gone.