Ive noticed the wasp gets demolished from Banshee turrets or the Phaeton. It can take some damage from Promeathean infantry. Apex and Sanctum seem to be the only maps I can stay back and attack without getting blasted. Urban is the worst, got shot down in less than a second from Phaetons.
Yeah urban is pretty bad for the wasp. But I did manage to survive for quite some time on Skirmish at Darkstar
Its the enemy Mantis round that usually destroys us.
Wasps have a ridiculous space requirement for the minimal damage they put out.
You just have to figure out the best times to spawn one since they can be taken out so easily.