This tactic states that you put all your units in a line and move and then overwatch. For open missions or general movement to contact, you’ll want to employ the ‘congo line’ tactic. In city missions, this is the main way to clear any mission with roof accessibility. This way you can avoid the enemies overwatch, and then open fire. Simply, put all your troops on top of a roof, and then jump directly off the edge, ensuring you don’t move any more tiles once you hit the ground, preferably you land behind cover.

You’ll need to get a feel for the enemy’s view distance in order for you to make full use of this trick. The first method takes a lot of practice. Either one, walk towards the enemy until you’re in the tile on the outmost precipice of the enemy’s view distance, or drop from somewhere into their view. That means that if you can get into the enemy’s line of sight and then move any further, you can shoot at no consequences. Overwatch only procs when you move within the enemy’s line of sight. Xcom Enemy Within is a pretty polished game, but there are some weird quirks you can take advantage of. How to ensure all your guys don’t die/General combat tips: The boots on the ground stuff is extremely important, no matter how many satellites you have, if you cant recover anything, and all your troops are dead, then it’ll all be in vein. If you can kill it before it shoots you, no point in needing better armor.) (personally, I value stronger weapons over better armor. This means your research path will be: weapon fragments > experimental warfare > and then whatever you think is more important, beam weapons or alien materials, and then carapace armor.

In my mind, you want to rush the foundry, then tactical rigging, and finally improved medkit.

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