[Boron]

The archers have some serious issues imho.

Most of them have been said already, i'll summarize all the problems:

-Only 5 Hp, so very fragile. Some nations have even a priest as PD, so if they are your only undead you'll even lose a few to pd each attack.

-2d1f, not so easy to get paths. Only Ctis + Ermor get them fairly often (or always as Dtombs Ctis).
All nations can get them via spectres, but that's then enchantment 6 and conjuration 6, so not earlygame but midgame and you need quite a few spectres, so they are no longer cheap. You might have to use the spectres as leaders for the archers too.

-The nations that get them easy are the death nations. So your enemies will have plenty of undead counters anyways.

-Friendly fire. As Daynarr said, this is really ugly if you kill 10% or so of your elite troops through friendly fire in every bigger battle.

All in all i find the longdead archers not really good. Imho a spectre is the better investment for your deathgems normally. And in lategame then either demiliches or tartarians.

Finally keep in mind they are archers too, so they are vulnerable to the classical archer decoy tactics too.

And last but not least the banefire decay effect is MR negates iirc, so you will need a ton of hits vs. a good SC or really insane luck to infect him with banefire and they have only 10 precision.