Seeing that they had waited a full 30 seconds and the surveillance drone had not returned, everyone's heart sank, including Ye Feng's.
Could the drone not return because the portal was one-way, or was there a problem with the drone?
One question after another surfaced in Ye Feng's mind.
If it was the former, that would be less of a concern; even if the portal was one-way, they actually didn't care.
But if it was the latter, it would be troublesome.
If the drone had a problem, did that mean other equipment might also malfunction? Mainly, would the missiles be able to detonate once they went through?
All of these were unknowns.
At this point, Li Yongming, who was in charge of the command, took a deep breath. Without waiting any longer, he continued giving orders, "Proceed to the next test, bomb with rocket shells."
This time, including Li Yongming, 10 soldiers were prepared; each picked up a shoulder-launched rocket launcher and installed the rocket shells.