Your investigate is something like somehow get more info after victorious battles.
That is true, yes.
Investigatory Units in the short term will be good for getting a better idea of the situation during and after missions. So we're more aware of what the aliens were trying to do, if there's any alien influence, EXALT influence, and the like.
Well, it is exactly how I understood the intention from the beginning
And I think this approach is very impractical. Design action for a mission like that is quite expensive. We are always short on UP and the only scenario when I see us spending UP on that is when we have no other uses for NOTSOFTERS
Why I think my approach for investigation unit is far more practical
1) Yours spend tokens in a very illogical way. a) Hey, combat veterans, you train with each other sharing all experience you got in combat! BTW, you are better investigators now. b)We tell you, part of X-COM, what we, X-COM already know about Exalt. Hope it helps you. Compare that to my a) Hey guys, we have some experience fighting aliens and want to share it with you, b) we got some very interesting data on Exalt guys..... I'd prefer your revision without tokens to your revision with tokens
2) IAC teams are a better source material for doing investigation work. NOTSOFTERS are trained to fight aliens. IAC teams is a mix of special forces and some of them are (counter)intelligence by design. They have legal authority. They know their regions.
3) Passive effect that I try to achieve far outweighs some mythical "NOTSOFTER+" unit investigates battle site and gets some clues. Actually, I think, X-COM sends actual investigators and scientists to the site after the resolution of the battle.
4) While importance of a single VP is going down, it is not nothing. Should we go investigation mission, (I think it is when we have no reason to send units to combat, like when enemy already launched) I prefer to not spend VP on them. You may ask "but what if we want to send investigation team outside of "IAC zone?" In that case we load them into a Skyranger. IAC can be used outside of their zone they just need transport for that like any other unit.
5) Further revision potential. After revising IAC teams that way, we can upgrade them further with the most obvious direction being decreasing their cost. It is harder to come with useful upgrades for NOTSOFTER
6) UP cost. There are non-zero chance that NOTSOFTER+ will cost more than 1UP. You are hand picking among already highly trained individuals and train them further that looks like more U for me. My revision just expands cooperation and nations have huge pool of specialists to pull from, I think it is far less likely to see U cost increase
7) I see only one reason to go for this NOTSOFTER+ over my proposal. By asking someone else to do intelligence work for you, you are increasing the chance of leaks and give them some power over you and it is always better to be independent. But it is the cost I am willing to take