The British army doesn't look complete without these vehicles:
Yes it would. Germans have no Flak 8.8, no Panzer 3, no Marder, no Hetzer, I can go on and on...
1) The M3 Lee — it would be nice to see this double cannon tank shooting two units simultaneously.
Would have the exact same role as the AEC.
2) The Matilda Tank — a heavy tank like the Churchill and Comet, but unlike them this one should be non-doctrinal and available earlier.
Would have the exact same role as the Churchill/Comet. Why should it arrive even faster?
3) SAS jeep — this one is not as essential the first two but would be a good idea for a mission. It's basically a jeep carrying a machine gun that fires incendiary bullets.
Would have the exact same role as the Universal Carrier.