Cavern Captures
A cavern capture is part of the BFR Imprint process.
In order to get a cavern capture, one must be inside the SOI of a cavern facility at the time of capture if the base is worth (at the time of this writing) 450 BEP or CEP. Resecures also count if they are worth 450 BEP or CEP, but a resecure can only count towards the cavern capture requirement every 20 minutes.
If a cavern capture is awarded, the HUD displays a message alerting the player to the capture.
Beware: If you are killed right before the time of capture, do not respawn. Wait until after the capture to click your respawn button, or else you will not be awarded the capture.