perma-cloaked wormhole guard posts
So
that's where the mystery ships come from... Wow, I hate them. They are nonsensical, undocumented and can ruin logistics.
In one game, I had a very frustrating moment when conquering a system. Why? I had 2 friendly wormholes that I thought were safe. After all, there was nothing on the other side but my own systems. The assault was under control, so I brought science vessels through. Suddenly, reinforcements appeared, seemingly from all wormholes at once, and flanked the vessels. This happened twice. After confirming my systems weren't breached & the AI ships were not cloaking types, I was at a loss as to what happened. I was frustrated because there was no possible logical explanation.
Hidden wormhole posts are clunky and feel cheap. Why can't wormhole reinforcements come from the warp gate (or guard post, if the warp gate is down) and go to each wormhole from there? At least then a player can see why and from where reinforcements are arriving.