I've just gotten into playing Engineer and holy hell, it is satisfying. Seeing your efforts have some kind of result, while also wielding a surprisingly effective sledgehammer. I'm pretty sure I was just in a successful Galencourt defense where my initial putting up of barriers inspired others to do the same, and by the time we fell all the way back to Feydrid's tomb there must've been half a dozen people using engineers to set up walls and spikes, a whole line of fortifications with fixes every time there was a breakthrough. It was amazing, and the attacking team couldn't really break through and keep broken through long enough to destroy the tomb.