3 sentences

1. 侦察兵被派往敌营打探虚实。

   zhēn​chá​bīng bèi pài wǎng dí​yíng dǎ​tàn xū​shí.

   Scouts were sent to the enemy camp to suss out the situation.

   Source: Dong Chinese Dictionary

2. 将士们衔枚疾走，趁夜色突袭敌营。

   jiàng​shì men xián méi jí​zǒu, chèn yè​sè tū​xí dí​yíng.

   The soldiers marched silently at night to launch a surprise attack on the enemy camp.

   Source: Dong Chinese Dictionary

3. 侦察员化装成商人的样子混进了敌营。

   zhēn​chá​yuán huà​zhuāng chéng shāng​rén de yàng​zi hùn​jìn le dí​yíng.

   The scout disguised himself as a merchant and slipped into the enemy camp.

   Source: Dong Chinese Dictionary