Hi,

I can't remember how I beat this particular scenario, since it was quite some time ago. However I'll give you one tip that was extremely helpful to me in all the expansion's campaigns and might prove useful to you.

Heroes carry over. They carry over all their statistics and spells.

If you have a save of the previous scenario, just before it ended, then do NOT end it immediately. Instead take your hero and visit all map dwellings that offer permanent bonuses, especially primary abilities: (attack, defense, power, knowledge), secondary skills (if useful) and spells! (build all guilds up to level 5 and learn all those spells you can!). And of course XP too, though you should reach the cap anyway before that.

This way you'll have a much more powerful hero that could make all the difference. Even if your armies are weaker.

A year late, but nevertheless I'll tell you how I beat it (because I just finished it).
1. As ZFR pointed out, heroes carry over from previous scenarios. My heroes were all very strong from the beginning. Main hero had the following stats: 12 16 14 9 (Attack, Defense, Power, Knowledge). It also had very good secondary skills: Logistics, Offense, Earth Magic, Air Magic, Archery, Tactics, most of them at expert level. Her Chain lightining did 660 damage. The other 3 heroes had high Attack and Defense values (between 10 and 15).

2. On this map, both enemies had 2 towns right from the begining, so yes, you are right, you have to move fast. You can see the map here:http://www.ign.com/wikis/heroes-of-might-and-magic-iii-armageddons-blade/March_of_the_Undead. I flaged the dwellings in the near vicinity and quickly captured the neutral towns 1, 5 and 4.

3. Meanwhile, a seconday hero explored the zone north of town 1 where he found a shipyard. He bought a boat and landed near town 1. I moved most troops to main hero (Adrienne), she climbed aboard, crossed the sea and landed near town 2. My hero had only Gnolls, Lizard Warriors and Dragon Flies but I managed to capture the town easily. I dont remember exactly but I done this during second or third week.

4. In the next few turns I captured his second town (town nr.3).

5. The second enemy posed more trouble, because he kept coming from portals right near my towns, but my secondary heroes had very high skills and managed to win all battles while Adrienne went on and captured his towns.

That's it.

Hi
i played march of the undead. flagged EVERY dwelling. Checked in town with the numbers of EXTERNAL dwellings. I have them all.
Still i'm still playing the game and the scenario does not recognize it is finished. .
What to do ?
Thanks for any suggestion. I would love to finish the campaign as the SAVING system does not allow to keep on.otherwise.. and i would like to avoid cheating. Or avoid that the game treat my cheat as one.
Thx