Quoting StevenAus, reply 27Even though a game like Wesnoth is a bit different (because it is scenario and tactical combat oriented) it really adds to the experience to play through an entire scenario (especially on the Hardest difficulty) while not taking taking any *unbearable - restart scenario* losses, and making more crucial level ups than you lose afterwards. It is really traumatic when you get most of the way through a level and then the AI takes out a loss condition hero or a highly levelled up unit that you have spent multiple scenarios building up. .
Is it really traumatic, or simply unrecoverable ? It's been a long time since I played Wesnoth, but my impression was that the game didn't give you much breathing room. I couldn't afford many losses, it would just get harder and harder in later scenarios. This is what some people have to say about reloading in Wesnoth:
Well, a loss condition hero dying ends the scenario in a loss, so you need to restart. But if a high level unit dies, you really need to restart anyway. You need to build up a good retinue of high level units to be able to survive later scenarios, so you need to do more than simply finish the earlier scenarios.
Something you might want to try is shown here. Basically having three rolls for every attack (a RNG Smoothing value of 3), and a unit does either 0, 1/3, 2/3 or standard (3/3) damage, moderates the bad luck somewhat, but you still need to make sure that a unit can't be ganged up by 3 or more enemy units in one turn. And RNG Smoothing of 3 means - if you are in high defense terrain and get hit, it's likely to be a minor hit, rather than a full damage hit. And if you are attacking a unit that is on high defense terrain, you are likely to do at least some damage rather than all or nothing. Try out wesnoth-xp with the above link, I only play using it now - regular Wesnoth games have far too much luck - and the effect of bad luck is *much* bigger than the effect of good luck. (Bad luck can lose a scenario or high level unit, forcing a restart - good luck might mean you survive a little bit longer without as much pressure.)
After this scenario, I've lost all of pleasure from play, because of the fact, that my every unit in battle line was 3 or 2 level veteran and I had to load every time, to save them
You do need to level up (and keep alive) your units, and latter levels rely on having high level units to be able to complete them. Try wesnoth-xp with 3 RNG smoothing and 0% Damage split ratio. It is a much superior game in my opinion.
now I'm playing without it and I've learned the same things as you - I make my moves more cautiously, try to defend heavily wounded units, mages, defending main heroes - my tactics generally changed really now and I think that I've learned a lot - but I'm still learning
You are always learning, and even playing the same scenario can have many possible outcomes. One strategy you need to use on a number of scenario maps is to hire level 1 units (which are usually cheaper than recalls) and use them to absorb the brunt of the damage (and losses) and then sweep in with your higher level units to mop up (and level up those not at the highest level) Apart from units with Leadership, who help adjacent friendly units do more damage, you don't usually recall maximum level units in any map except the last map, when losses don't matter as long as you win.
Moral of the story: there are players, including myself, who feel annoyed by caring about high-level units very much. For them retrying a battle until it survives can be very annoying, especially in a game as random as Wesnoth.
Try wesnoth-xp with the settings I mentioned - I think you might find the game a lot more fun - but still challenging.
I enjoyed replaying battles in Heroes of Might and Magic, because randomness is a pretty small factor there (occasional stroke of Luck or Morale), and it's helped by the law of big numbers. I used Save/Load in Heroes 1) because I enjoyed trying other approaches, tactical battles were interesting 2) Penalty for losing a battle is often lost game. Especially in hero/hero battles - one side gets a lot of experience and perhaps artifacts, the other gets nothing at all.
Me too, reloading battles in HOMM is quite a different story. If you are interested in HOMM2 with some extra features, try fheroes2. I have contributed to that a reasonable amount, and some of the new options are quite neat (plus you can have more of the map on screen when you use a higher resolution).