In this task, you are given a sentence in the Japanese language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).

昨日正午頃、マカオに向かうヘリ・エクスプレスのヘリコプターが13人を乗せて、香港の信徳センター近くの海に墜落した。
At around noon yesterday, a Heli-Express helicopter heading towards Macau crashed into the sea near Hong Kong's Shun Tak Centre with thirteen on board.

この拡大版は、CDでのオンライン購入またはスタードックのゲーム子会社、TotalGaming.netからのデジタルダウンロード形式で提供されている。
The expansion is available as an online purchase in CD or digital download form through Stardock's gaming subsidiary, TotalGaming.net.

彼はその長さがフットボール場の3、4倍の長さだったと推測したが、彼の立ち位置のせいで完全に確かだとは言い難かった。

He estimated it to be the length of "three or four football fields," though he could not be entirely sure due to his vantage point.