Cloaking has always been a bother, and it always leads to "DROP AN OBS DROP AN OBS DROP AN OBS" or "GET MT GET MT GET MT". Both of which, yes, are a good idea, however its fairly limited to these. Making sensory as the first chamber a bit bothersome, and always leads to the same thing.
Beacon Sensors are dropped by the commander, they are essentially like mines. A marine takes it, and places it like a mine on any surface. Beacon Sensors would be an upgrade from the Observatory, and be dropped within the Observatories range. Perhaps costing 5 resources each.
What this beacon sensor will do, is detect cloaked aliens in a SMALL radius around itself (about 1-2 metres). On top of that, every 15 seconds, it will emit a high frequency ping. This will actually make a loud sound to players, allowing aliens to know there is a Beacon Sensor nearby. What this high frequency ping will do, is somewhat like sonar. It will work like motion tracking, revealing the location of all lifeforms (aliens AND marines) around it. However it will show the size of the lifeform with the ping (in the size of what the sprite marines see), so you can tell somewhat what it is. This ping will not uncloak aliens.
These would be a fantastic counter-measure to sensory chambers! Trying to hide these littles sensors all over the map, behind pipes, above doorways, even in a hive! Imagine you are trying to siege a hive, they have Sensory, and are building in a hall way. Aliens would try to sneak their way in, before you got the phase and some turrets up. Stick one of these babies on the roof near the entrance and WHAM, small radius cloak detection and 15 second interval pings.
Aliens would be able to destroy these with any direct attack. Parasite could defect the Beacon Sensor, halting its cloak detection for 30 seconds.
Obviously, the name is just the first lame thing that came to my head. Something like High Frequency Sensor (HFS) would be better.
Feedback?!
