Gentlemen may I ask question about Psy/MC attacks - what circumstances trigger it? Let's set all option to defaults - I mean what aliens can attack regardless of line of sight. When they exactly start doing it? When they spot x-com units, when certain amount of turns has passed or something else? What priority they will use? Weak Psy/MC units, high ranked units or units with most powerful weapons in hands?
Based on my last 3 months playing vanilla TFTD (dunno exactly how OXCE differs but my guess is not by much):
- aliens need to have PSI/MC capable unit on map
- your soldier only needs to be spotted, horizontal distance is irrelevant but affects success rate the most (under 20 tiles and is practically a guaranteed success but over let's say 30 and it will never succeed, under same conditions)
- they prioritize: spotted, then weakest resistance (fixed PSI/MC strength, even if you aren't there yet)
- at 20th turn aliens get a free peak at all your solders
Now the most confusing part:
- when you hit an alien with direct fire, that soldier becomes visible to all aliens on map (and remains visible for number of turns equal to hidden Intelligence attribute value every alien has, max I think is 4), obstacles or distance don't matter to visibility
Last part probably isn't 100% correct. Maybe hit alien must only be wounded and they are remembering only for one turn instead, with Intelligence coming into effect in some other circumstances. Or it is 100%. Hell if I know. One thing I clearly remember, after my PTSD wore off, is if you are getting frustrated - you are playing it right!