Obviously they were new players, and they made assumptions about how things work in MWO, that and the lack of PGI provided tutorials on sensor operations and targeting, there is a lot of false knowledge in the player ranks.
My attempt here is to help clear some of that up and keep things at a beginner level.
Sensor range default is 800m
Modifiers that increase sensor range by 25% do stack but additive and not multiplicative.
Thus BAP(+200m) plus ADV Sensor Module(+200m) would allow for 1200m Sensor range.
ECM counters Sensors. I'll leave ECM there as there is ample to discuss on ECM and sensor for a separate guide.
When you see enemy mechs within your sensor range that are NOT covered by ECM, They all appear on your minimap only and have hollow triangles over them on your screen.
If any of your target have a SOLID triangle target icon then it is selected with R by yourself or another teammate. Hollow Triangle targets are not R'd. Hollow Triangle Targeting data is NOT shared with other teammates. They will NOT see what you see, they will ONLY see on they minimap SOLID Triangle Target DATA. You change a hollow triangle target to solid triangle target with the R key.
The benefit, besides the obvious, is that it allows for friendly team mechs with LRMs to gain a missile lock and impact the Target. Thus spotting occurs passively when you spot the mech, Select R and target that enemy mech. You are now sharing targeting data with the rest of your team. Those with LRMs can now target and gain a lock and fire missile on your target. If you maintain LOS (Line Of Sight) until missiles from other mechs impact your target then you will gain a spotting bonus. These can really rack up and stack additively. To further enchance one's spotting abilities you may choose to add a TAG laser and/or a NARC Missile launcher (and Ammo) to your mech.
If you are new and were not aware of these game mechanics then I hope you find this information most helpful. If you already knew this information, then this guide was not meant for you.
Edited by 7ynx, 12 October 2014 - 08:06 PM.