date unknown
I really like the current OK army list, but I've slightly tweaked the ogres army list, only adjusting minor things which I think won't overpower the army, but make it a little more balanced, and make more sense in some cases. Let me know what you think 
impact hits regardless of distance
ogres are thick-skinned, getting a 6+ AS
all ogres have armor piercing
big names do not count towards maximum points allowance, only 1 big name per character - butchers and slaughtermasters can't get big names
tyrant: causes terror
hunter: move & fire with harpoon, can move through difficult terrain without penalty, this also applies to the sabretusks.
bruisers: can get kineater, which is increased to 12". BSB gets same wording as other armies' BSB, but can use his standard as great weapon. When you have a tyrant in your army, the BSB upgrade is free.
bulls: now 3 points cheaper
ironguts: 0-1 per bull unit. You get an extra unit if you have a tyrant in your army.
leadbelchers: point cost remains, but get hits instead of shots (how can they miss with a cannon full of sharp stuff?
), can get reload gnoblars for +2 pts per model, not requiring reloads. "BOOM engineering" can be bought for an additional 8 points per model, granting misfire rerolls.
yhetees: 5+ daemonic ward save , +5 points
maneaters: now T5 and W4, otherwise remains the same cost. Can have BoH in addition to a close combat weapon.
gorgers: ravenous includes being able to charge on the turn they appear - making it more fluffy: they are very hungry after all.
impact hits regardless of distance
ogres are thick-skinned, getting a 6+ AS
all ogres have armor piercing
big names do not count towards maximum points allowance, only 1 big name per character - butchers and slaughtermasters can't get big names
tyrant: causes terror
hunter: move & fire with harpoon, can move through difficult terrain without penalty, this also applies to the sabretusks.
bruisers: can get kineater, which is increased to 12". BSB gets same wording as other armies' BSB, but can use his standard as great weapon. When you have a tyrant in your army, the BSB upgrade is free.
bulls: now 3 points cheaper
ironguts: 0-1 per bull unit. You get an extra unit if you have a tyrant in your army.
leadbelchers: point cost remains, but get hits instead of shots (how can they miss with a cannon full of sharp stuff?
yhetees: 5+ daemonic ward save , +5 points
maneaters: now T5 and W4, otherwise remains the same cost. Can have BoH in addition to a close combat weapon.
gorgers: ravenous includes being able to charge on the turn they appear - making it more fluffy: they are very hungry after all.
no guts, no glory