Here’s a couple of guard towers the Khadoran High Kommand forgot about back in 612 and the Winter Korps never bothered to look into before the Orgoth Invasion. Basic maintenance saves lives people!
I can heartily recommend Dirty Down rust/verdigris/moss effects after trying them out on these two Guard Towers, by the way. Just remember to 1) Shake a lot before use 2) Heat up both fluid and model slightly.