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Hmm, it's strange that no one answered. Well, if it's still relevant... :
To extract it, you need to get the DEF file of the desired unit from the LOD archives, extract the frames using programs available, for example, here - wogforever.narod.ru, and, let's say, in Photoshop - edit the necessary details. However, this is a very "makeshift" method. If you're serious about creating a truly new unit, you need to learn 3D Max (to create a new 3D model) and, as mentioned above, "have programming skills." But it's better to contact us (the HotA addon team) or those who are developing WoG. - both in terms of implementing a new unit into the game and in terms of creating its graphics, it will be much easier than trying to do it yourself. ;)
To extract it, you need to get the DEF file of the desired unit from the LOD archives, extract the frames using programs available, for example, here - wogforever.narod.ru, and, let's say, in Photoshop - edit the necessary details. However, this is a very "makeshift" method. If you're serious about creating a truly new unit, you need to learn 3D Max (to create a new 3D model) and, as mentioned above, "have programming skills." But it's better to contact us (the HotA addon team) or those who are developing WoG. - both in terms of implementing a new unit into the game and in terms of creating its graphics, it will be much easier than trying to do it yourself. ;)