Infantry tower sructure shields don't seem to be working correctly. Today I was sniped three times and twice died to python rounds when obvious shield structure was active. Is this a bug? No the shield was not down at all. ... I'm thinking if you are an attacker and the shield doesn't render for you then you can shoot through it. I messages the sniper and he said there was no shield but I was right next to it and it was very active. Is this on purpose? Will post video asap.
Anything that doesn't render on your client won't stop your shot. This is how snipers can kill Engineers that are hiding behind destroyed turrets trying to repair them- destroyed turrets sometimes don't render at ranges where infantry can still be seen. It's probably a bug that's keeping the shield from rendering for some people too.