The UEF T3 Heavy Shield Generator, nicknamed the HSD Pulse, is a UEF unit. This is a defense unit. It has the second largest radius out of all the shields, but takes a long time to get up and running, has a rather high energy cost when running, and is not as strong as its Aeon and Seraphim counterparts. It is, however, sometimes able to deflect enemy airplane wreckage, as seen in the Bulwark, and is very wide, requiring fewer generators to shield your whole base. Make sure you have at least a few generators beside it, to lower its energy costs.