Gondor Model List - How does Army Composition Work?

[Russell]

I have the following Gondor Models - could someone suggest a workable force I could use?

Boromir with Banner (Foot and Mounted)
Boromir on Foot (Shield)
Beregond
Faramir Armoured (Horse and Mounted)
1 Captain of Minas Tirith (Shield)
39 Warriors of Minas Tirith (12 Bows, 12 Spears, 12 Shields, 3 Banners 
5 Knights of Minas Tirith
3 Citadel Guard (Spears)
3 Citadel Guard (Bows)
4 Fountain Guard (Spears)