Durability
Care to emphasize?
Campaign Mode game, you can save the game
Both common feature requests, but despite game saving existing in GAE, MegaGlest doesn't seem to have any plans to import the feature any time soon.
the existence of level buildings in the style of Warcraft, Age of Empires
That's somewhat possible with mods. In AoE, advancing the 'age' changed the looks of all units, which cannot be done [yet], but it would be possible to have units capable of individually "upgrading" themselves into a newer one. GAE's subfaction feature (not yet in MegaGlest) would allow an upgrade to effect the entire faction better, such as prohibiting the production of an older "age" unit in newer ages while allowing the units from the new "age" to be produced. Likewise, subfactions could allow older units to be given a new morph command to upgrade to the current age units. This would be basically the same as how Civilization upgrades their units when the "age" in the game advances.
However, even GAE's implementation of subfactions is buggy (AI issues), and like game saving, there's no known plan to implement them in MegaGlest yet, though I would expect that at some point of the future, someone would hopefully implement them or an equivalent. Again, though, these would require someone to make a mod using such ideas. Don't expect much for major changes to the default MegaPack. After all, trying to add just one "age" to the MegaPack would probably translate to over a year of modelling.
a good suggestion was to have blood during the battle would be more exciting
Technically, modders could add fake blood to the unit's attacks, with a splash particle, but there'd be the issue of indiscriminate bleeding, in other words, anything that gets attacked would have blood fly, whether it's a building or even a miss. For optimal blood, there'd have to be some type of "on hit" skill, to give a unit a different model/particle/whatever when they get hit by an attack. While that could be cool for eye candy such as having the unit flinch when hit, it would overall not work very well, and I would hardly consider it worth the effort. I'm not familiar with many RTS's having blood anyway. Doesn't really fit our target audience anyway.
and the war tactics of Age of Empires example: to attack the water, boat, would be a good option, the Roman attack ... You can also have the head of the village, eg. Faction Egyptian pharaoh
I have no idea what you mean by that, sorry. Could you rephrase/elaborate?
lines from the original languages of each faction example: How is the Japanese faction
Not sure what you mean, again. If you mean having some characters in the factions "language" appear, such as Japanese characters on their buildings, or alien characters on an alien faction, that's entirely up to the modder. They could, for example, make those characters appear in the models, or on the icons, the command buttons, etc. However, if you mean making all text appear in that language, you'd have to translate the entire game (
More info) and choose that as your language. Of course, it can't be set as a default or anything, as most people don't speak Japanese, for example.
many who play these games complain that the lack of level
[Citation needed]
Oh, and on a side note, it's best to make each feature request an individual thread, though do note that saving games, campaign modes, etc, already have several, and don't need another.