I only use the medi-kit once I have personal armour. If you dont have personal armour or better then there is no point in having a medi-kit because whatever shoots you, you die. It is really rare for a soldier wearing no armour to survive.
Also when you start the game check the bravery of all your soldiers and only give the really good weapons to people with high bravery.
Why you might ask...
People with the lowest bravery are most supcestible to Mind Control, Panic and going Beserk.
So it is definitly not a good idea to give the rocket launcher to the guy with the lowest bravery who then decides to go beserk and kill half my team, including the three sergeants I had, so the survivng half decide to panic. They all get turned into reaper food as I helplessly watch. The only amusement I had was when a floater killed two of his own reapers.
Also whoever says Chyrsalids are easy are completly mad. However tanks rule against Chyrsalids, because they do not turn into evil Zombies and they can survive a hit as well.
The best tactic against a chysalid when you spot one is to get at least 3 people to autofire it or rocket launcher it while simutanelusly throwing at least 3 primed to zero grendades at it.
Sounds like overkill and it is, because the bas***s should die extremly quickly.
Also im sure someone said to ignore the zombies as they hatch into Chrysalids after the Zombie dies. True yes, but ignoring a zombie who they attacks one of your men then leads that man to become a chrysalid-hatching zombie. However Zombies are slower and Cyrsalids are the highest priority to attack.
Also a great tactic to use. If you see civillians about to get zombified then you should stun em real quickly. Chyrsalids only attack unstunned people so then the civs wont turn into zombies. However if they wake up then you have to kill them as they become hostile towards you (and you cant complete the mission unless you kill them). You could alternativly try to stun them again but ive never been in that situation.
Also for loads of people who are having trouble with the Download here try getting one from Home of The Underdog as that seems to work great on my comp, the only problem I get is the occasional crashing before a mission but that is nullified by saving before every mission.
Also I notice that on my download that i got from Abandonia did not contain any save game files. That might have been a big problem to many people for who it doesnt work.
UFO Gold Download