Salaam mia666,
You said:
"Allah led people to believe Jesus died on the cross, but actually he didn't"
With respect I am going to have to disagree with you. We as Muslims know that Jesus did not die on the cross, as per the following verses:
"And [for] their saying: ‘Indeed, we have killed the Messiah, Jesus, the son of Mary, the messenger of Allah.' And they did not kill him, nor did they crucify him; but [another] was made to resemble him to them. And indeed, those who differ over it are in doubt about it. They have no knowledge of it except the following of assumption. And they did not kill him, for certain. Rather, Allah raised him to Himself. And ever is Allah Exalted in Might and Wise. And there is none from the People of the Scripture but that he will surely believe in Jesus before his death. And on the Day of Resurrection he will be against them a witness." [Quran 4"157-159]
Thus, as per the above verses, the Qur'an categorically denies the story of the crucifixion of Jesus; so I fail to see how Allah (as you stated) mislead people to believe otherwise.
You also said:
"Allah also once sent Muhammad a dream that made it look like Muhammad would have few enemies in battle, but he ended up having a lot, and Allah said He sent the dream so Muhammad's troops wouldn't feel discouraged."
May I ask you to cite me the verse/s which supports the above statement?