Although the MERT don't intentionally land during fire-fights, it would be very easy for a hidden enemy to shoot an RPG and take out the helicopter as it lands.

医疗应急反应小组并不愿意在前线降落，因为只要一个隐藏的敌人发射一枚火箭弹就能轻易击落正降落中的直升机。

youdao

In a Rio DE Janeiro slum, drug traffickers opened fire on a helicopter carrying Santa Claus to a Christmas party, apparently mistaking it for a police helicopter.

在(巴西的)里约热内卢的一个贫民窟附近，一架载有“圣诞老人”的直升飞机遭到贩毒分子的枪击。这架直升飞机送“圣诞老人”去参加圣诞晚会，显然被贩毒分子当作警察的直升机了。

youdao

9A view looking down at a full water bucket suspended below a helicopter before it is released over a forest fire near the settlement of Kustarevka, Russia on August 10, 2010. (REUTERS/Denis Sinyakov)

2010年8月10日，库斯塔列夫卡（Kustarevka）村落附近，照片是从直升飞机上向下拍摄的，下面悬挂着满满一桶用来灭火的水。

youdao

They've been called in to assist US ground troops. A helicopter gunner asks for permission to fire.

VOA: standard.2010.04.06

Israel responded with tank fire and a helicopter strike, killing two Lebanese soldiers and a journalist.

VOA: standard.2010.08.04

One hundred fifty miles south of Denver a helicopter returns with fire managers who viewed the charred landscape from the air.

NPR: Western Wildfires Prompt Thousands of Evacuations

The team has built a few versions of their helicopter, named after the Gamera, a fire-breathing flying turtle and monster contemporary of Godzilla.

WSJ: Flight of Fancy: The Sky's the Limit for Team That Rises to the Occasion

Loheide marked a spot for the helicopter to land with a smoke grenade while still under fire and then helped to load up the casualties.

WSJ: Army soldier recovering from TBI gets Silver Star