Just finished a marathon 1.5 hour game of Company of Heroes Online.
Red Ball Express is one of my least favourite maps for a number of reasons, it's like a bowling alley rather than a fire-and-move map. My Blitz commander got stuck at the northernmost VP, tied down by a fairly skilfull Ami Inf commander micro-ing MGs, mortars, AT with the odd blast of ranger attacks. We fought to a stalemate at this point, but he took the VP (damn that forward operating base ability, there's a house next to the VP he set it up in using a clever tactic of making a mortar off the bat to dislodge the MG team he knew I'd put in there to cover the point early doors).
An all-arms defence (not good for a blitz commander) of AT guns, nebs and MGs allowed me to hold the line before I cranked out some armour. The American teams (this map is a 3 V 3) attacked with an armour heavy force up the centre of the map (I felt like I was letting the other two guys down as they'd taken their VPs) allowing us to arty-spam them with rockets and reactive arty. In the end the whole thing got very messy and it was a win on the tick-down timer to us with 2 VPs in the bag and one white with neither side in control.
What I learnt from it is that on that map you need to go much further forward, but in my humble the way it's configured allows the Allied commander an advantage in that the gaps in hedgerows and terrain favour early inf spamming (and the early US game is all about spamming infantry).
Anyway, am now level 35 but still nowhere near as good as I should be! Lest we forget, this game is completely free.