The new command system seem to me to be the greatest impediment to RT play, having to shuffle menus is a nightmare. If each command had a specific intuative key (F for fast, Q for quick, etc.) tied to it (as CMx1) it would be easier, but now every command requires you to change menus before issuing the appropriate order. Make a mistake and that target order you thought you issued turns out to be a fatal move command you had no intention of issuing, meantime you've rushed across the map to command another unit. This is less likely in 'turn based' games but the pressure of RT means it's a constant annoyance.