The `palisades_watchtower` is, rather confusingly, not a tower: it is not garrisonable, has no attack, and no significant vision; its parent is `template_structure_defensive_palisade.xml`. The same is true for the `palisades_outpost`.
The desired template is “palisades_fort”, which is not a fort, but a tower, it has `template_structure_defensive_tower_sentry.xml` as its parent.
The templates follow the naming scheme of their corresponding art actors, which were added in rP9915 and last touched in rP12183 (eight years ago). From left to right: watchtower, outpost, fort:
{F1392641}
This patch renames `palisades_fort` to `wooden_tower`, replaces the `palisades_outpost` and `palisades_watchtower` with the `wooden_tower` in the few map files that use them (most used the `palisade_fort`), and removes the `palisades_watchtower` and `palisades_outpost` templates, to avoid future confusion. The art actors are kept.