they take forever to fire though and have a tiny range on top of the churchill being slow as fuck. just back up, it won't hit anything moving. it is a strong ability but it's easier to dodge then any other grenade.
Churchill has better acceleration than an M10, as Alex will be quick to tell you. It's a lot more agile than you'd think.
Edit:
Let me put it this way. Recently in a 3v3 on La Gleize, I took a single Churchill and ordered it to drive up a Pak 43's cone of fire. It made it all the way to the gun, tossed a nade, wiped the Pak, and reversed back to my FOB without going under half health.
That's really all you need to know right there.