Pretty much how it should be done!
The more common version in my experience is that one FT covers the cross while the other moves through in file - this only exposes one person crossing the road at a time, and means you don't need the SL&FTL to coordinate simultaneous manoeuvres. The effective process is that point man halts at the crossing's edge and covers one direction, the second then halts at the crossing's edge and covers the other direction, and then 3 and 4 cross and cover the first and second directions. That leaves two facing each way down the road in a loose box, with the other FT then passing through this. Upon the other FT finishing the cross, then the original FT then completes the crossing for 1&2, and reforms on the far side to continue.
The troop-scale equivalent to this is that a section covers the crossing, with one FT covering the near side (a pair in each direction), and the other FT passing through and covering the far side. Again has the benefit of leaving the command and control of each element to a single FT, rather than coordinated actions.
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