He then set up Steven Caldwell for TFC's second before Darren O'Dea put them two goals ahead but the home side conceded twice late as the Impact grabbed a point on the road.
Brockie says it could have been a completely different story if he had slotted home Reggie Lambe's pass in the 67th minute instead of blasting over the bar.
"I have to be the first to put my hand up because I should have hit the back of the net with the one that Reggie laid back," Brockie told MLSsoccer.com.
"If we had gone up 4-1 at that point, there was no way they could have come back.
"There was some good play in that first half. Unfortunately, for one reason or another, we came out in the second half and still created chances but didn't finish.
"It is the first time we have scored three goals this season. But then again it is also the first time we have conceded three goals all season [in league play].
"When are you winning 3-1 at halftime, you should always come away with the three points. It's a very disappointed changing room right now."