How do you update Sensor Towers in Strongholds during Holdout??

[christo1]

It says build or upgrade Sensor Towers but how is it possible?

I confuse lol.

[Mad4it]

I think this is an error to be honest as even with a level 15 sensor you cant see the incoming details.

[50_Cal]

I think you need to hold all SH to see the incoming details of the attacking armies I remember it being like that on the first ever SH event,

[ORION-W27]

Nope 50 cal. That doesn't work either. Finality regularly holds all champions league sh's and we can't see what/who is coming till it hits.
This has changed the event - no poring on senders. For the better? Not sure but it is different

[christo1]

I wondered if the attacking base that captured the SH say has a level 15 Sensor Tower would they be able to see incoming???

[Drifting death]

I just think Gree turned them off to make them harder to hold, and cut down on server overheads, For the event. Simple as that as far as I know.