One way to avoid save spamming is to have the AI decision-making react to the number of saves used.  Instead of moving around and generally waving their hands around saying 'Here I am, shoot me!' they should use the cover they have and set up ambushes and crossfires.  In other words, the more you try and change the outcome of a turn, the more sneaky the AI plays.  The less you save, the more chance you have of seeing aggressive action.

I agree with Ironman modes. It's vastly needed in games.

Like old FPS games like Half-Life and Quake & Quake II. Save before a hard engagement and the challenge is gone....don't save and you might die three times in a row (which is really frustrating) but you FAILED and don't deserve to go further on that difficulty lvl.

I know I need Ironman modes to keep a challenge up.

Speaking of that, I'm going to go Ironman mode on Quake & Quake II!