The Kanem-Bornu empire probably had one of the best professional armies of Africa. The Ottomans trained elite units of armored musketeers. In West Africa most armies used cavalry with chain mail, lances, swords, poison arrows. I saw a really cool picture of a hausa warrior on horseback in chainmail waving a sword and a very large shield. As for egypt, I saw an illustration of a mamluk soldier once, can't remember where but they were heavily armored. Muskets(2 or more), swords, lances, ......plate,etc. These were the guys who stopped the Mongols from invading Egypt after all, wouldn't want to come across one on a battlefield.
[ame=http://en.wikipedia.org/wiki/Military_history_of_Africa]Military history of Africa - Wikipedia, the free encyclopedia[/ame]
[ame=http://en.wikipedia.org/wiki/African_military_systems_to_1800]African military systems to 1800 - Wikipedia, the free encyclopedia[/ame]
Great links IMO. Somalis and Ethiopians both utilized muskets and cannons as well as foreign mercenaries in the various wars they fought against each other in the middle ages.
The Nubians, Carthaginians, and Axumites all utilized war elephants in battle as well,etc. You had lightly armed yet agile warriors in Kongo and the Zulu empire who lacked horses and heavy weaponry but could dodge projectiles, arrows, and in some cases(zulu), even outrun cavalry. Sounds crazy, but it's true. The Kongo in particular had a fondness for setting traps. Ditches, punji stakes, trenches, fake "camps" the enemy would exshaust themselves against,etc.
Cotton armor, chain mail, leather, ......plate, all were used throughout Africa. Chariots were used but obviously fell out of practice in late antiquity.The Kongo empire and central african kingdoms created multi-edged throwing knives and daggers too, nasty, nasty weapons to say the least. Great for ambushing slower, bulkier armies too.
The benin empire, along with the ashanti used swords that looked like one-dimensional metal clubs, beautifully crafted but probably efficient enough to bash someone's head in if need be as well. You're of course familiar with the knoberrie(zulu club), war axe, and iklwa(short stabbing spear) as well?