| hold_ext of the Entity, set can_attack_occupants to false. | 
| mine_ext of the Entity. | 
| No, it is not that specific. It blocks all land units.
 However, you can change the crush options for those vehicles, so that some vehicles can crush the building while others cannot.
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| Set land to true or false in the impass_ext of the building. | 
| Could you ZIP your mod folder up and PM it to me? | 
| Make sure you do not have the Archive Viewer open when trying to build. Otherwise, cloning should not be causing Mod Builder errors. | 
| Squads? ABP files are a collection of models that are used by an Entity.
 Look at the animator of the entity_blueprint_ext of an Entity to see which .abp file it uses.
 
 What exactly are you looking for? There is no list, but you could be the first to make one.
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| Use the Archive Viewer that is included with the Mod Builder to open Art .sga files, such as ArtSovietEF.sga. You will find them all there. | 
| Please ask your question in a new topic, so that others with the same question can find the answer. Thanks! | 
| Check your warnings.log for errors. You might have invalid file structure errors. You can find it in Documents\My Games\Company of Heroes 2 |