does this make sense : On the Wednesday evening there were many reports of fights that took place between Ward's supporters and his opponents. However, as there was more of his supporters the few opponents living in the town were forced to surrender.

yes this make sense

is there any other way in which I could express the second sentence that it would sound better.......

intead of was it should be were because it is supporters

In the end, the sheer number of Ward's supporters dominated the fewer opponents, and the fewer were finally forced to surrender.

Yes, the statement makes sense. It describes a situation where there were multiple fights between supporters and opponents of Ward on a Wednesday evening. Because there were more supporters than opponents, the opponents living in the town were eventually outnumbered and had to surrender.